Yes. This sounds a lot like my current experience, except for the language involved (TS in my case) and the team split (I'm the one with less .Net experience). I like to think I'm experienced enough to see it as a valuable opportunity to learn something that's not just about code and product...

Anyway, everything else you mentioned sounds uncannily similar.

Makes you wonder how such a culture develops. The only constant appears to be Microsoft development tools, curiously.