Don't forget that the game, even with the post-ShB improvements, didn't realistically fix the issue with pet ability queueing and it constantly throws out errors, can eat casts, and in genera egi assaultl is an ability that I wish the pets would do automatically just by existing because there is no reason to need the player to cast it directly.

The devs can't figure out how to make pets work correctly, and I would also sooner rather get rid of permanent uptime pets. It's not a good system and throwing good dev time after bad is not a good investment of resources, nor does it more accurately capture the feel of SMN by doing that, so I'd rather they just didn't.