That makes it worse. you'd think the mage's guild questline would be all about magic and stuff. but you can hack and slash your way through it and still end up as an archmage who's crap at magic. At least the TG involves some activities that really need a bit of the relevant skill set.
Yeeeesssss!!!! Character goal!
i have decided the goal for my orc is to hit at least level 40 withour using ANY magic, join the college and try to become archmage without using any magic. if memory serves you have to use at least one basic spell that i can recall OTTOMH, but my character mission is to become the most magically inept archmage in history with no skill in any school a single point higher than an orc starts with. For the irony.