I want you to direct your attention to the player.
As you can tell, the player is just standing there.
If the mobs are just standing there, then that means they just shot, thus, if the player was standing as is, they would have gotten hit, and thus been on the ground.
Thus, the mobs DIDN'T just shoot, and thus, they are just standing there.
I'd also like to direct your attention to the Klubba at the top-right of the screen, which is a meleer, and also is just standing there.