When I play an RPG (or RPG-like game), I want to know upfront: is this a storytelling kind of game, or a problem-solving kind of game? The rulesets that try to blend both often feel like they pick up the worst of both worlds, demanding players switch between two very different sorts of minds or risk spoiling the whole affair.
This is an interesting point I'd thought about before but never articulated.
I think it was part of why I didn't gel with one of my old DND groups. They'd sometimes be faffing around doing "funny" stuff, but I mostly was sticking to the "use your resources wisely or perish" mode of DND.