So this week's episode shows the usual story where the heroes are suddenly in an alternate universe and only 1 of them remembers the real timeline (in this case it seems to be M'Benga). Marvel has done this story repeatedly in the comics, most memorably in Age of Apocalypse and House of M. Interestingly enough, a few years back they did another such story called 'Age of X-Man' in which superpowered mutant Nate Grey "X-Man" sent the X-Men into his own fantasy world where mutants had a place in society. Once the X-Men found out about the sham their world was, as usual they went to beat up X-Man, demand he take them back to the real world, etc. The twist was that X-Man then restored the X-Men's memories, showing them the miserable lives they had as hated mutants back on Earth, and taunted them if that's what they missed so much and if they really want to go back to that. Maybe there should be a similar element with Pike in this episode, where he remembers that if he goes back to the real timeline he'll go back to likely being injured by delta radiation.