I want to get away from my pets. They suck, but they occupy 2 slots that if I put anything else there it would be at best a variation on one of the other 3 slots, or a heavy attack. Don't need another direct damage. No more armor buffs would have an impact, crowd control is limited to use against rather common enemies.
So what use of all 5 skills without pets makes for a sorc as good as one with 2 pets actively adding synchronous damage during your battles?