Thing is, I'd be happy not with just FR, but with several settings, but they're doing none of them.
As I said before, I tend to like rpgs for their settings, the two are inseparable to me. I'm not really into universal systems, or I'm into them IF they have one or more interesting and detailed setting I'd be interested in. I know it might be strange to someone who prefers homebrewing, but that's how I choose rpgs. I was interested in D&D because of the settings. In PF because of Golarion., In WoD and SR because of, well, WoD and SR. In CoC because of Lovecraft. In 7th sea because of the faux-16th/17th century Europe Théa. Without settings, a game is just an empty shell of mechanics to me. Yes, you could use it to write your own stories, but it's not enough to maintain my long-term interest (and even initially interesting, but frozen-in-amber settings have a harder time to maintain my long-term interest).
It doesn't mean I'm against homebrewing, on the contrary, I like it. It's just, at first sight an rpg will need stuff above the system to catch my eye. Also, as I wrote earlier, a big part of enjoying rpg-brands to me, besides actual gaming and preparing, is reading interesting stories, be they novels, comics, or setting guides and seeing the setting through the inhabitant's eyes and geting to know cool characters I could connect.
Simply put, I'm much less intereseted in an rpg, if it's just the game, without added interesting fluff, it's just how I work and 5e is severely lacking on those parts this far, so my interest dwindles more and more.
Honestly, I'd have said "this game is not for me, but I'm happy it's the perfect one for some" and walk away, only taking a look time-to-time, just as I did with NWoD, if it wouldn't have killed some of my favorite settings and novel series I liked with the same sweep. It's just stings a lot more, because of it. I skipped 4e almost entirely and went to PF, but still did read the novels, now D&D has a system I actually more-or-less like, but it became empty in every other regard.