pets are more of a burden than anything else, really
if you have them autoattack, you will not be able to dash, shield, or use your weapon while they attack, and if you don't have them on autoattack, you will end up barely even using them because in the midst of combat you're not going to waste 4 seconds doing an attack that takes away 1/20 of an enemy's healthbar.
solution: they should attack individually