I've commented before about how most D&D settings assume some variety of post-post-apocalyptic scenario. That's the standard justification for why adventurers can pull magical relics out of dungeons and ruins that seem to be more powerful than anything being currently crafted and offered on the market. There was a high magic civilization in the past, for some reason it isn't around anymore, but you can dig up its leavings and that's more worthwhile than making anything new.
That might be changing. We're well past the pulp era's "cyclical history and fallen civilizations" fixation. That sort of thing smacks of attitudes a lot of people are actively trying to cast off, and they don't seem to carry a lot of weight with the younger generations. Instead, they've grown up with a plethora of small technological conveniences and the march of progress, both technical and social. So it should be no surprise that they're moving towards stories that reflect that.
Blue collar magicians supplying small magical conveniences fits with that. So do cosmopolitan urban centers with diverse demographic populations. It's a new sort of fantasy for a new era.