Remathilis
Legend
I mean, the fact that Ravnica guild backgrounds give additional spell options to casters already made other backgrounds mechanically weaker. A predetermined feat or feat-level ability shouldn't be that much worse.I don't think a Background coming with a Feat would break the system: We had Variant Humans, House Rules, Supernatural Gifts, Dark Gifts, Dragonic Gifts, and UA that pretty much twirled this idea, of having a Feat at Level 1, around throughout 5E in different forms.
Though feat chains and background would have been a far not elegant way of doing Eberron dragonmarks and houses.