ToME: the Tales of Maj'Eyal

No, it's intended. The reasoning is, you're a mage - teleport there. Screw lousing walking. Also, it's a secret 'route' that non mages are shown - it's assumed you don't need it - being that you are a mage and can teleport there.

So the intention is, non-mages have an easier time accessing the city than mages?