Possible level/story jumps....really?

[Istaru]

I can see it now:
"DRG, your DPS seems a little low. Are you using Internal Release?"
"No. That's not a dragoon ability."

"SMN, the healer is down! Can you Swiftcast res him?"
"lol nub summoners dont get swiftcast"

We already have DRK/WAR without provoke and WHM/SCH/AST/SMN without swift cast sadly. With level jump, you could more see people doing current content without their quested and cross class abilities.