This is where I post thoughts about Telegram in a slightly less formal and more direct way than in the official Telegram blog (~70% of which is also written mostly by yours truly). Subscribe only if you're a hardcore Telegram fan.
Their concern is that publishing the personal information of law enforcers and propagandists may incite violence.
I think this situation is not black and white and would rather leave the channels be, but typically Apple doesn’t offer much choice for apps like Telegram in such situations. Unfortunately, I assume these channels will end up getting blocked on iOS, but remain available on other platforms.
P. S. Everyone is welcome to express their views and comment on this post provided they stay on-topic and use English. Thanks!