Entitlement?! I know this is the buzzword of the decade, but I hardly think it applies here. The point is that cross-class abilities are not mentioned at all in-game. Heck, I found them by accident when I hit the wrong hotbutton and opened my abilities window. If they are important enough to be considered required, then they should at least get some sort of mention in-game that leveling alternate classes is about more than just opening the job you want.