You know, there are desirable things that come on corals sometimes too
Would have hated to see what a dip would do to the 2 coral-living brittle stars that came in on a monti ... or any of the crabs I've had come in on SPS.
Given iodine dips [IMO] are not very effective against monti-nudis [which would be the only monti-associated pest I know of] ... I wouldn't dip.
I've also found Montipora to be generally less tolerant of iodine-based dips ... IME I've had them loose color and stress a lot more than other sps-types in the same dip.