(A review for Mr. Ken Mogi's a twitter video about Kyoani and Japanese TV)
I haven't good English listening skill so may I miss something to review for your this video, but I have an opinion.
At first, ordinary Kyoani's animation pieces are not for general people on my point of view. If you could see those at once, you would notice it more or less. My girlfriend said she saw all stories of "K-On!" and "The Melancholy of Haruhi Suzumiya" (shortly "Haruhi") by Kyoani, but her last review was 'Just a time loss for me!' by herself. She loves other animations, so this is very typical criticism their pieces. Because my opinion is same. Please watch those in real.
I continue, this fierce reason comes from their work's minimalism style (in Japanese, 日常系 nichi-jou-kei). Namely, characters don't do anything dramatic things in their story. Justly bored. And the animation ends. Especially, in "K-On!".
This style brought from the literature's one. You know well -- Haruki Murakami imitated American literature minimalist (like Kurt Vonnegut), and Japanese light novel, eroge (erotic games) imitated it again on more vulgar expression, at end, was installed in Kyoani's animation.
This imitation's imitation process involves in degeneration. In other words, like Plato was saying similar thing about the painter who imitated artifacts such as chairs, Kyoani's minimalism was not serious. The style's beginning, American writers needed to express common people.
Of course, they Kyoani also described ordinary everyday in high school's girls. But if you saw necessarily found that was no mean. So, at least their representative work was most degenerated minimalism fake. I (or we) call it Nichi-jou-kei in sub-culture criticism.
(For the English only reader, I add a representation.
Nichi-jou-kei is in Kanji 日常系. 日常(Nichi-jou) is meaning 'always' or 'ordinary days', and 系(kei) is 'system' in literal, this term the meaning is 'about'.
So Nichi-jou-kei is 'about ordinary days' on Kanji)
In your this video, perhaps (if I don't do mis-listening), you are guessing that Kyoani's pieces have general and wide popularity. This is a misunderstanding for that's fake style.
The main reason why recently Kyoani's pieces cannot be main stream on most viewed time, for it.
In addition to this point, if you watched "Haruhi" you would be felt a shock that story was very childish. That anime watcher my girlfriend said 'That was a stupid moe-anime "Haruhi", I had been done a creepy dance for that anime in my school forced with anime otaku fans, as like they were an idolatry religion that I had never known'.
At end, Kyoani is an anime sphere's niche company. Because they use not only bored but also decadent expression for midnight time animation. Children don't see midnight anime, mainly be watched by adults. And they have jobs, tired, so teenager girls nonsense caprice is a healing.
These adults be called 'chunibyo (eighth-grader syndrome)' as a otaku term. Simply said, they were adaptation disorder in real society more or less, and escaped in animation's fictional world.
If you want to know more about the term's context, see also Takashi Murakami's next a text.
I have some references for analysis the Kyoto Animation arson attack. There is a critical text, by a subculture critic (a philosopher) Teruaki Georges Sumioka. I quoted main parts of it on my twitter, this link is it's copy to my blog (in Japanese).
And this link is my essay on blog about the incident's analysis (in Japanese).
Then, I abstract all the analysis which I can read until now.
The attacker was a chunibyo adult maybe, wanted to escape from 'endless school days' on Kyoani idolatry forcibly.
By Sumioka, chunibyo adults aspire escape from their hard reality (as like that involved income gap by Abenomics unavoidable), as an underclass member. Sometimes they are called 'kimo-ota' (shorten term of 'creepy otaku') in Japanese.
Sumioka says, 'Let's wake up from anime'.
By my opinion, also foreigners are having subculture Orientalism unconsciously, so Kyoani's harmless, more or less childish (especially not related intelligence), feminine world was so perfect for their Japan idolatry bias.
After all, Kyoani anime geeks include emerging religious believers by my analysis. And main fanatics are a type of chunibyo adult. The incident's suspect may be an example very typical escapism of 'endless school days'.
He couldn't be a real member with pretty school girls of 'K-on!', and at the same time his reality had been being more harsh day and day.
He had to eliminate scary gap among his delusion Kyoani idolatry as an infinitely greedy consumer (as if addiction) and low income worker.
Perhaps his first attack was on a mail or something criticism to Kyoani's president (by the president Hideaki Hatta and Kyoani themselves, October 2018 somebody wrote a death threat on their homepage. They reported it to the police. And other threats which included intimidation or criticism were more over 200 times for employees and supervision. -- From Kyoto simbun news 2019/7/21, 2019/7/18)
But he could never stop his idolatry addiction. His brain thought 'Kyoani stole my novel' (by attaker himself). His last attack broke all delusions.
Takashi Murakami was a leader of subculture theory, at least on the foreign English sphere. And his that text on Instagram tells you a critical reflection incompletely. That is to say his ages can't escape from anime idolatry absolutely. It's a business.