I think it's up to your players. It's generally assumed that you'll be rolling plenty, because your players have a motivation for doing so (if you roll your highlighted stats, you gain XP). As such, most players will go out of their way to roll as much as possible, and in doing so will force you to make a bunch of hard moves and add more Drama.
Essentially, rolling forces pacing in play, and given the fact that you don't roll yourself, as the MC, the pacing is entirely in the hands of the players. If they want to change that, it's fine. If they don't, that's also cool.