In the previous episode (Last Exit Before Doomsday! (2010)), which is Part 1 of this story, Dr. Doom crashed through the giant eye in his headquarters, leaving a giant hole. The hole is gone in this episode, even though it takes place at the same time - and with Dr. Doom packing to evacuate Earth, he wouldn't have bothered to get it fixed right away. Of course, the Super Hero Squad go and make a new hole in the eye in this episode, though even that hole is fixed when Galactus drops the fumigation bombs later on.