Well, apparently you can tell from the start who respawns. Did I know the pillar did my first game? Or the Skeleton in the Black Cave? No?
Do I automatically know if a Wizard is a summoner or Wizard? No? Does it maybe take one or even more respawns before that becomes apparent? Yes?

Do I then have 3000XP just figuring out the fight? Probably. Maybe you didn't with the meta-knowledge of who respawns, but I don't, definitely not my first game...

Apples and oranges.