Quote Originally Posted by Bishop81 View Post
Well ... what kind of party could they possibly be excluded from?

DF dungeons? Those are easy enough even if you go in with the bare minimum iLv and barely know your Job's abilities.
Hunt groups? Do people even care in such groups?

The only type of group that is very selective about their members are static raid groups. But since only-Jobs with fixed set of abilities will be able to enter those raids, cross-class skills aren't an issue - other than the 1-4 mandatory ones that everyone already has.
Only raid statics and in my opinion that is completely fine. It is always better to learn min maxing before raiding.