I think that was a case of it being ready to port at the right time. They're down a headliner with the transition from Spider-Man to Pokemon, and they hadn't run Backdraft since the closures in 2020. Easy way to add more Minions in a park that loves them, plus a relatively high capacity attraction.
It's looking like I'll be going to Universal Japan in May, so I'll be able to provide an on-the-ground report on how guests appear to respond to it/general foot traffic.