Dunno about that. Simply renaming things worked for 5e. So many of the things that people "hated" in 4e appear in 5e without so much as a ripple simply because they are named differently or presented differently. Never underestimate the power of presentation.
I know you've pointed out many time just how
much of 4e actually did make it into 5e, and you're not wrong. Many of the things complained about most prominently and bitterly in the edition war are still in 5e, whether you look at the nature of the mechanics or the concept or the interrelation of the two dubiously called 'dissociative mechanics,' things like second wind, BM maneuvers, PDK healing, HD, overnight healing, and hp narration all are very much like the corresponding things in 4e, and to no meaningful objection.
But the names are not the only differences. The classes have generally been restored to their former places. No longer constrained by formal role, full-casters are more versatile than ever, especially the traditionally Tier-1 classes, now with at-will attack cantrips & neo-Vancian casting, and the few sub-classes that are all that's left of traditionally-non-casting classes. In 4e, the PH had 8 classes, half of them were Martial. In 5e, the PH has 12 classes, none of which are strictly martial, and 80 sub-classes, 5 of which are.