Mages are OP in wow classic

heh iceblock
try again bucko

>turns 360 degrees and walks away to maintain a distance of exactly 37 yards from you at all times
looks like..... it's over....................................................... for you

Yes, that's by design. It's the same reason Priests are the best healer, Warriors are the best tanks, etc. Classes all have things they're good at. For all their power, mages die in basically one hit and leveling (assuming you aren't doing an aoe meme spec and layer abusing) is REALLY slow.