I feel like nobody is actually saying anything untrue or incorrect or contradictory about the QBs. Lots of things are true at once. It's possible you can win w/o an elite QB. It's also unlikely Hurts is one - but not impossible that he still develops into someone that is good enough. I do think late bloomers are rare. This league spits out and gives up on young QBs faster than ever, including the higher first-rounders. And the correlation between college performance and pro success remains pretty haphazard too.
Nothing the Eagles are doing now was actually planned two years ago. They were supposed to be competing for more NFC East titles behind Wentz and Pederson, and if not Pederson, probably an established head coach replacing him... as well as a more impressive replacement at DC. Now they have a developmental coach and a developmental DC (who still probably won't be here next year) and a developmental QB. They will either show make a lot progress over the next two years or there will be a new QB next season and probably a new coach by 2024 (if not also next season).
What I'm pretty sure of is they won't play in the Super Bowl over the next two years. And also that they won't change GMs.
Wentz's contribution to 2017 can't be understated, as it got them most of the way to 13-3 and out of the wild card round. The question is, can Hurts be as good as Foles? He is likely more talented than Foles, and more suited to the way the NFL offense has evolved, but when it was clicking for him, Foles had both arm strength and the ability to thrive within a particular offense. Hurts might too, in different ways. Or he they may both ultimately be back-ups.
Do we now think Howie was so attuned to Wentz's issues that he really did draft Hurts as a potential successor? I don't think so. Still seems like he was meant to be a back-up who might turn into something more - or into a trade chip - and of course, they really misread how Wentz would react. And as much as Wentz turned out to be a prima donna, not sure you can blame him for not liking the fact that a high draft pick was used there, not because it threatened his job but because he didn't make his offense better. In retrospect that doesn't matter because it looks like no offense with Wentz was going to be good enough, but they didn't actually think that at the time they gave him the contract.