First time I am seeing a manga where the main villain of the arc get his transformation & instead of dominating he gets slapped around for the first 2 chapters of its introduction..
Sasuga Oda

Luffy always serious,but let's have popping eyes flavour to it to show that he isn't affected by his zoan awakeing and that this shit is always will be part of his fights from now on.
Sasuga ODa
Gyaban dissing him will amount to nothing,hence Bumsopp's speech.
Sasuga Oda
At this point just end Imu in this arc. Not even worth the offscreening from BB.