Flavio,
English is not my mother language, so excuse me if something sounds not so friendly.
I think that tools should make things simpler. AE may be the best stabilization (maybe excluding smoke, flame and other high cost alternatives), but AE is not a NLE.
About learning FCPX first, I was not talking about you. If you look at most forums (here, fcp.co, etc) most of the people complaining about FCPX didn't ever launched the App (in their own words).
I love some FPC7 features. I love some Avid MC features, and some Premiere features too.
I agree with the second story line lacking precision editor, but I have to admit I not using too much the precision editor because i find the inline trimming really good. And I have my own complaints about FCPX, but I love the core idea of it.
Leo Hans
Editor AVID - Final Cut Pro
http://www.leohans.com