Perhaps, but Telegram is not really a E2EE chat app, but rather a social media. Like 90% of Telegram use (at least in my circles) is channels which are not E2EE on Telegram.

This arrest is not about E2EE.

The arrest is about how much responsibility social media platforms have about the content posted on them.

There is no good answers to that question, and the debate of topic online is utterly useless.