I agree that Deorbit/Rescue should be available to all healers and not only Astro.

The rest sounds more like "I don't like change."

If it means more people are doing The Feast (8v8 and 4v4) now compared to 3.x, I would say the overhaul has been a success which the goal was from the beginning.

More balance changes will come later. There was a lack of data from 4v4 during the pre-season cause people weren't playing enough. But that's understandable with the whole new expansion and stuff.

If you don't like the current balance, don't play and come back later for season 6 (or if they decide to make balance changes mid-season).