Do you really think Tim being in India or elsewhere has anything to do with this or any software release cycle? Tim runs the whole company and does not sign off every beta release. If anybody, you should channel your concerns to Craig, LOL.
I mean, I get it, it is a very boring period in iOS development cycle, with everyone gearing up to iOS presentation in June.
The only exciting thing I can still expect to be added to iPadOS 16 is a full-sized Apple Music Classical app, instead of the current iPhone clone. All the rest will be just minute tweaks & fixes with not much to be excited about.