I guess you've never experienced a watering hole of people at the only power outlet around? And aren't foreseeing being somewhere without USB jacks but with regular receptacles?

There is a whole bunch of path-dependence in what you've said. I formed my approach a decade ago, primarily in the context of traveling, and haven't seen a benefit to revisiting it.

But surely by the time one is talking about buying special cables with no data lines, but still needing to do power negotiation somehow, maybe it's time to question some recent assumptions!