Like evryone else I also wander why the game is so littered with so many checks and notions that seem to have no impacts at all, and tbh I truely hope it's on the to do list for a later point in developpement ; otherwise it would be a cruel joke on both us and the pple who work on this game... I mean it took work to put them there, so I have to believe they planned to do something with it.
I'm not a pnp player and I have save scummed to avoid failures at times, but I would really love to see critical success and critical failures ; especially because when you save scum you just want to avoid failures, so all fail roll trigger a reload, hence a roll is just a waste of time.
However with critical success even a save scummer can get excited for a good roll because, and I speak for myself, you waste time to avoid failures but not to trigger critical success (unless the outcome of the roll is something I'm truely invested in like a romance).