Rerolling skill checks will always happen. You just abuse quick save/load at choices instead of rollback. Personally I like to see what I actually do/say when I pick an option as somtimes what comes out of the MC isn't what I was going for so I'll rewind. IMO it's just better to let a player who wants to roll back have a better experience since it doesn't negatively impact anybody who doesn't want to use it.