I mean Gunko was blown the fuck up, with regen they can physically hit her and shit.
Yea but its never drawn in such a way that Luffy can dish out a physical punch on certain people. The most hes done is against Ulti and it was a headbutt he basically lost and then was "saved" by Yamato hitting her instead.
Even Zoro the last time he did this was against Monet and he doesnt actually hurt her when he cuts her in half.
Its just a pattern you recognize with Oda. The "chivalry" is real and he often doesnt let his male heroes harm women.
Gunko healing lets us kinda get around it but do we need to really see that happen 50 times?
I really hope theres more than just Imu controlling one DF user.