For me personally, I couldn't care less. Sure I would giggle for a bit and just move on.
Would a certain fanbase become a laughing stock if ZKK doesn't happen? Sure. Does most people satisfied with what Zoro have done this arc? Definitely.
Let's be real, everybody gonna gang up on ZKK supporters and laugh at them if ZKK doesn't happen, that's inevitable. But after Wano arc is over, we're gonna pretend like nothing happened and go back to square one.