I'm not against re-separating feats from ASI marks, however it's not as simple as some folks initially assume; in the current 5e structure, ASIs aren't tied to character level, but to class level, and some classes get more than others; disentangling feats from ASI levels creates a difficult to resolve mess as a result, when multi-classing is considered (and even when it isn't, for fighters and rogues, etc.); not only for the differing scales, but also for the knock-on effect that has in regards to the by-level feeling of gain and accomplishment. In the current system, it's set up so that you get something nice each level, but that you never get drowned by too many things at once - disentangling feats and ASIs breaks this in a number of ways, and while it could potentially be resolved in terms of balance, the feel of general class progression would end up feeling distinctly lop-sided in other areas, almost no matter what you do.
Feats are meant to be strong and interesting, and they're meant to be a viable substitution for a full ASI. In the early design days, this was done with a strong thought towards the new bounded accuracy philosophy that was being put into the core of the system; branching out and doing interesting or different things was intended to be made more appealing and more valuable by virtue of the the fact that your core ability score bounding was not as swingy as in previous editions. They were intended, at least in terms of the combat-centric ones, to add versatility more than they added direct power, because that versatility was, in itself, powerful in the new system. At least, that was the philosophy. Power creep being what it is in the present day, I could not fault people for shrugging and saying that being able to overload on feats as well as still capping your ability scores was fine. I wouldn't agree, but I wouldn't be surprised to see it.
None of this is intended to really argue for or against anything or anyone, it's just some food for thought to add to the discussion.
This would also reduce the CRAVING NEED for rolling stats that many feel, incidentally.
All else aside, Tuco, no... it really wouldn't. Not for me, at least, and I suspect not for others who also wish for it. We're on opposite sides of the spectrum here in terms of what we want (and that's fine ^.^), but I can say very certainly that my view of the essential need for the ability to roll our stats has nothing to do with, and remains completely unaffected by, how many or how few feats we have access to and whether or not they remain tied to the ASI core system. Do you recall the various reasons that were brought up by myself and others that were eager for the ability to roll and/or set stats, in previous discussions? Most weren't to do with having power or room for feats at all.
