JEB
Legend
I just went back to look at the preview pages. I'd forgotten that they also moved ability score adjustments there. That was presumably another thing that kept them around.I think that Backgrounds, as the design team sees them, are a convenient package of skills, tools, languages, and a feat, that come with an understandable story-reason for all those things and set a tone for your character. They're specifically to deal with the problem of too many choices at char-gen. That you could make up your own and/or write a much more detailed backstory is part of their charm.
I don't think that they'd have commissioned a ton of art for them and given them a half-page each if they "didn't think much of them". They're a really good tool for what they are.
So I amend my earlier comment - it's specifically the 2014 incarnation's role-playing aspects (BIFT and background features) that the current designers didn't consider worth keeping. But removing them, and making backgrounds into a package of mostly game mechanics, made backgrounds worthwhile in their book. (And clearly for some, but not all, of the folks here.)