Sure, there are bugs and there are many parts of Harmattan which really are of quite bad quality. They're not produced by a rush but by a lack of competence from whoever wrote them. However, PR1.3 doesn't introduce new bugs, which was the point.
Exciting new defect/mis-feature/regression: When a page in the browser fails to load (or you stop it quickly), the URL bar is now cleared. Fantastically annoying if you're browsing e.g. a Twitter backlog out of mobile coverage. I tended to load up a bunch of links in browser windows when I was on the tube that I knew wouldn't load, so I could just "reload" them when I got signal back. Can't do that anymore, as all the windows become worthless. Time to switch to Firefox?
You did claim that it has 3000 new bugs, right here: ...which just isn't true.
Yes, Facebook is a piece of crap. Even the 1.4.0 update didn't help much. However, as said, PR1.3 is not any worse than PR1.2 in this regard. Same goes for the video call.
Of course. Everything could always be much better. Often you just have to settle for the best available option. In Harmattan's case that's PR1.3.
I'm only commenting here due to this claim/question: There may be 3000 bugs but not 3000 new bugs. What would be the point in not having those 1000 bug fixes and having a system with 4000 bugs instead of 3000?