Teeteringhead - I'm with you - if they had actually landed ON the pad it would have prevented it from lifting and avoided digging the nosewheel in so much. Clearly not much of a recce done.
Yes, the flightcrew should be invited back to make amends - no helicopter pilot should be unaware of the problems of downwash, especially on something like a V22, and when you cause damage you should at least offer to repair it.