...you can't move away, you can't cast any attack spells, you can't cast a healing spell and you can't even drink a potion, what exactly CAN you do to defend yourself?
Use defensive skills. Use a retreat skill (Expedious retreat, Phoenix dive) You can risk it and drink Huge heal potion, in case you survive hit then you end up with more health then on the begining. You can cc your oponent then heal yourself. You can wait to help from other party members. You can use leach talent, ... there sooo much options. But in the first a person who rely the skill which provokes AoO should avoid such situations.
In fact limiting some actions are sometimes risky brings next level of strategy. It also makes almighty mages somehow fragile. :-]So the mages tend to cover behind muscle friendly back. Well the AI should be prepared so I agree that proper AoO we see at the best in the new larians project. However crossbow changes could be done soon.
