Meh, like it or not (I can guess which), Telegram has the best API in the game and it's amazing for businesses and all sorts of use-cases beyond chatting 1:1 with your friends. For example, its API lets you create buttons and nested applications within the app which certainly aren't there for you to talk with Billy from work.

So it makes sense that they build out more features for those use-cases like those using it as a media platform. I really like what they're doing. This is how you build a platform.

I'd be surprised if HNers are even aware of how other people use Telegram beyond basic chat. We tend to dismiss and hold disdain for use-cases we don't care about rather than learn about them earnestly.