1) I don't see regressions (talking about focus-follows-mouse?); just stuff that could work better. It is a first release, of course it is not going to be as refined as the 16th release of the previous major version. We called it 3.0; we could've called it 2.34.
2) You're making assertations without backing them up regarding "not very usable". But yeah, there are loads of books on change management. I don't think not changing anything ever is the solution to this.
3) Agree in that various users hate it. But no data on how many are leaving and how many are joining.
Pretty cool you see the potential though :-)
I guess we more or less agree except our expectations are different for what qualifies a .0 and so on.