Spirit Weapons need better AI
It did that to me a few times. If I don’t have anything targeted and something is coming at me, they turn their attention to it. I haven’t had a real problem with that so far because I usually pull them out before starting my attack on NPCs, but I can see how that could be a problem if you brought them out and started to run with them. That’s happened to me before and this is partly the reason why I don’t bring them out in PvE unless I’m about to attack something.
They’ve been good to me in both PvE and WvW since they attack my target even when I’m down and I manage to rally from their kill.
I use and love a Spirit Weapons build. I agree that the AI is a bit sluggish and there should definitely be a way to have them stop attacking your target and follow you if commanded.
However, your first suggestion would actually weaken the Spirit Weapons a lot. One of the great reasons to play a Spirit Weapon build is that they’ll attack your target even if you’re dodging, running away, Downed, reviving someone else or doing something else. So they keep damage going while you’re tending to the rest of the battlefield, or whatever.