It’s similar to hunter pets not attacking on aggressive and aggressive feels more like defensive now, this seem to be fixed already on December 4th hotfixes (which are not yet out, and who knows when they comes out… atleast there are some naxx hotfixes too as for a main dish, maybe very soon hotfixes?)
Meanwhile really doesn’t feel like leveling hunter or warlock, as when in past I did level them up, I pretty much always kept aggressive on pets / minions.