Classic act 1 mercenaries

I’ve run around quite a bit with act 1 mercenaries in classic & they’ve never used any of their magic skills, just basic arrows. I think this is broken in classic.

With a bit more investigation, I think this might be if yo hire below level 6 & level up, the skills don’t start working, but hard to be sure, because classic has no apparent way to check the level of your mercenary.