You have to understand that if Google did bring back Reader, it would be riddled with filters, content flagging/modification, and publisher banning.
"Wouldn't it be GREAT to re-centralize RSS?" Not so much.
Join a group running a tt-rss instance, spin up your own, or just have your RSS reader hit the sources for itself.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!