"It is not my home either," Spy Shot says in commiseration. "Though I'm not sure whether or not it is my dimension"

Did his NBEs come from Cybertron? Could this be their home? He really had no way of knowing. He regrets not having tried to go with the yellow NBE when it took the Cube and NBE-1 woke up. Then he could have learned more.

Of course, he also wouldn't have met Vers, and he doesn't regret that.