I suspect what will happen is there will be some form of guidance for what to do when someone doesn't really want to interact with the feat system overall. Just with the playtest material, I can imagine a human fighter can start off with Toughness and Skilled and just increase their HP and number of skills --and these seem on-par (or at least ballpark) with the other 1st level feats, whereas they were kinda lackluster when competing with ASIs and things like PAM, CBE, Resilience, etc. If there are similar options for any mandatory high-level feats, things could turn out fine.
This is what I will be pushing for most when the survey comes up -- Please, WotC, include EXHAUSTIVELY clear language about what everything is, WHY everything is the way it is, and what and how new-to-TTRPG players ought to look at, think about, and do with the game. The number one issue I have with 5e hasn't been any given rules or obvious stinker options or bad stealth/vision/CR rules or even the encounters/day & martial-caster balance issues, it has been clarity, communication of design intent, and ease of use for new gamers.