I think the Superman Animated Series Legion induction ('New Kids in Town') keeps the LOSH cartoon in its own world.
I don't think it would be overkill, we had an army of Ultra Boys, 3 Mon-Els, 3 Laurel Gands, 1 Supergirl, 1 Superman, 1 Half Blood Superboy. Throwing in Kara In-Ze and Kell-El would have been nothing considering the only saw 3 of that double page land a punch on prime. Also Superman Beyond deliberately had more than 52 supermen of the multiverse so Morrison opened the door to an infinite multiverse.