I wasn't trying to be Paizo defensive. Honestly, I just read "We don´t need another Generica. We have Castlemourn for that." And my first reaction was "Bwuh?!! Someone's heard of Castlemourn??"

My second reaction was "Uh... I don't think that dead product line is filling any market niche whatsoever."
No offense to Castlemourn since I like the setting, but unfortunately I wouldn't exactly consider it successfully filling the "generic fantasy setting" market niche. (MWP is even selling it at their website for 67% off cover price! A sad end to what could have been a great setting.) I was just dumbfounded by your reference to Castlemourn filling the need for a generic fantasy setting making Golarion redundant. That's all.
But no need to sidetrack further. As a matter of fact, I agree with you that I don't want another generic fantasy setting from WotC either. In fact, as much as I love Paizo, I haven't jumped on board the Golarion train because 1e-3.x Forgotten Realms has always been my generic fantasy setting of choice. Now, they have done some great stuff with Golarion, but like you and/or others have said, it's still designed to be a "you can play an sort of fantasy and pseudo-historical campaign you like". There's even fantasy Egypt, there's fantasy Japan, etc. I don't have a need for that sort of setting even if it is full of great ideas (got too many books filled with similarly great ideas I haven't used yet).
Personally, I want more Dark Sun, Planescape, and other very, very non-generic settings. Once I had one generic setting (which for me will probably always be pre-4e FR), I don't really need any more no matter how incredibly well done they are. What I really need are settings I could never dream up! Eberron walks a fine line between having good generic placeholders (i.e. Breland/Cormyr/Andoran/good guy European) with some crazy, unique ideas that make it stand out from the other settings. Golarion has some fun bits, too, just not nearly enough unique ones to make it my preferred setting.
What *I* would like (but could possibly be in the minority) is for even crazier settings. A setting that is entirely based in the Shadowfell. An undersea setting. Dark Sun 4e or other post-apocalyptic barren wasteland fantasy setting. An Astral Sea piracy setting. Unfortunately, those are inherently risky and not perceived as mass-marketable, so I'm not holding my breath for a company like WotC being able to afford that kind of risk.