The label is used for the sake of ex-Strat players. But it probably causes more confusion for everyone else.

"Single-season replay" works just fine for career play. "Career Play" works just fine for single-season replays. The only real difference is the recalc range.
And don't feel bad about learning something new, David. It happens to me, too. Sometimes, I'll even find myself at a screen I never knew existed before.