The rope, if left to thread into the crack, will push any cam as far back inside as the cam will allow, making it's retrieval impossible.

IMHO, a bolt should be place in the low right edge of this pic (out of the way but within reach of the leader), to help alleviate further damage to the roof edge, as well as issues with potentially stuck gear.

Perhaps alternatively, the anchor could be removed from where it's located 10' above this corner edge, to the right of this corner itself?