I definitely get what you're saying here. In the 4e MM, to use an example, the efreet has a variety of combat abilities - but pretty much nothing else. The flavor text says that efreet hate servitude but are often called upon by mortals to do favors. OK, great. That's similar to other editions. But they're called on by mortals to do... what? Given how they're statted up, apparently beat people up?
Contrast with AD&D, 3e, and even 5e where the efreet have other things they can do that aren't focused on combat. And the efreet isn't the only critter affected this way.
And I found the same with much of the adventuring rules that are out there compared to AD&D, 3e, and 5e. The 4e ones always seem more fixated on encounter-level involvement than other editions. But that's 4e's particular myopia - it's THE edition focused most tightly on providing a particular combat encounter experience.
And, ultimately, another reason Rob Heinsoo's analysis about the disapproval aimed at 4e falls short.