Bill Zebub
“It’s probably Matt Mercer’s fault.”
No, that’s not what I mean. I get that.The origin of our d20 checks lies in that. The idea is that in the real world outcomes are somewhat unpredictable. We can't know every factor bearing on them. Perhaps a slight humidity made this lock stiff - harder to open. Rather than trying exhaustively, and futilely, to list every factor, we roll for it.
The simple answer? Yes, works for us.
But when I hear “surprising” and “unpredictable” …which I totally agree with…I think of something richer and more interesting than just failing or succeeding when the other result is expected. I’m the first to admit that as a DM I struggle with “spontaneous creativity”, and even I can do better than stochastic pass/fail when it comes to improvising surprising outcomes.