Like any other software, there are people at Facebook who continuously reviews the usability elements of this product. In this most recent change, they told us that they wanted the front page to be simpler and clutter-free. Personally, I agree. But there could be other reasons why they did what they have done.
Thing is, Facebook is free. They get the bulk of their revenue through advertising. It makes more sense that they optimise the pages to address the requirements of these advertisers. Of course, I think that Zuckerberg and co listens to the likes of you and me but I believe that the people who brings in the bagful of cash have a very influential position on how things should look like. If not directly, the product managers at Facebook would certainly have their interest.
It’s quite simple really. If you want Facebook to accommodate your every whim, then you better be prepared to pay.