Earlier quoted context omitted.
Telegram is a big source of news within Russia for Osint, banning access would be detrimental to journalism
TG isn't Russian, I believe they are based in Dubai
The founder and CTO is Durov, whose previous project, VKontakte (Facebook clone) has been effectively confiscated by Russian government.
Telegram is a Russian project. People are hoping that because it's made by a "good" Russian who isn't in Russia anymore, and holds a grudge against Russian government, Telegram won't have Russian backdoors.
I'd say, that is rather optimistic.