All jobs should have access to all base cross class skills honestly. There are times I'll go Thaumaturge time to time just for some CC skills to go full support mage. And sometimes it can be all sorts of fun. Makes me a bit sad I can't go Ley lines and throw Stoneskins at everyone.

Although I really have to question for Tank cross class skills why the 2nd part of enmity combo is even there to begin with.