And the 616 crew couldn't prevent the incursion from completion because a) they only had one hour, and more importantly b) once they reconciled with Rogers, the Illuminati wasn't going to destroy any more earths, and they already dispatched the Cabal, who had been doing the dirty work for awhile. 1610 guys were pretty much overmatched; Maker and the Cabal knew this going into the Final Incursion. Thus their version of the life raft