Don't forget, he has his time displaced self's memories now, and as soon as he heard about what happened since the time he was taken from (in All-New X-Men), he ceded team leadership to Jean. He must be wondering what it would've been like if she'd led from the start.
This should be set at the same time as the current Champions arc, as they're going to find out about Disassembled next issue (likely in relation to the whereabouts of Honey Badger, who joined the reserve roster, or Goldballs, a personal friend to Miles). I wonder if Cyclops is responsible for sending them their new member? He remembers his time with them now, too.