I think I'd agree with excluding the games you mention WK (Though I can see it with Bloodborne I guess, as the Souls games are generally considered RPGs and it's closely related). Still, in the modern era RPG mechanics of one kind or another have been snagged by everything from FPS games to open-world racers. Honestly for me it's a little like that old saw about porn; I can't really define it, but I know it when I see it. I mean, you could say it's about dialog and character interaction - does that make the Telltale games like The Walking Dead RPGs? There's no levels to gain or stats to grind or dungeons to explore, but they're some of the purest "play a role" games around, to the point where how you react to unavoidable events is pretty much the whole thing.