Definitely right!
Who would be the one to waste up their precious time on making news updates on Telegram which they cant able to monetize it?
Ive seen some alerts or news in TG but still they do get out that source on known crypto news sites that we have known.
We do have;
Cointelegraph
Coindesk
Crypto-news
CCN
Bitcoinist
Its up to you on which place you do like to check out for latest crypto updates.
Telegram groups can also make money if the community in the telegram is a lot by promoting a product or service and to search for cryto information can also create a website that you mention,