Ya got me there! I agree with what you're saying here (along with Maxperson). I guess it's just that I didn't like that (though I didn't realize it until this moment). So it must be a taste thing.
Absolutely understandable! Golarion was also very...strange for me, after many years of FR, I thought "okay they did an alternative FR for themselves, and splash every dnd setting and genre on top of that". The whole seemed a big mess. After that I read some novels and setting books and the whole theme park started to working. It's still a mess, but a somewhat coherent and well-developed mess that give opportunity to basically every style I like from high fantasy to intrique to fey wilderland to gothic horror to Lovecraft (the fact that it is a couple shades darker than FR -if you thought about it beyond the surface- is also helping). And they have guns (I know, I know, Lantan, but still...). After a while it's my favourite fantasy setting side-by side with Ravenloft, however FR is still the 2nd favourite, because, well, if I wanted to be honest, because I grow up with Baldur's Gate and IWD and Salvatore and Cunningham and so on. FR is like the well-worn old jacket you take on high-school and countless concerts and Golarion is the new designer piece.

It's cool to take up the new goody, but sometimes I just want cozy FR drows and Waterdeep.
I also get the "too much fluff" argument. That's clearly a taste and therefore, fine.

I like fluff and for me it adds a lot to the game to read the background info.
Another thing is the formatting. OotA has a ton of info in it, but honestly I would prefer if that info would be in standalone chapters and appendices after the adventure like in Paizo APs. For example if WotC doesn't want to do big setting books, but I get the setting info about Menzoberranzan in the underdark AP, that's fine, just please put the description of the city in a standalone, ready to use chapter if I want to borrow it for my own game. It's not a tragic thing, the info is there and good, I just prefer Paizo's organizational structure.