Yeah I'm aware of this. My issue is with remembering SSS locations (which I just end up using google) and more importantly, exiting and re-entering SSS through npcs. This QoL would work out not just for local training dummies but SSS dummies too (if you're not making use of the timer there)
We're not talking about enmity reset. That's been addressed anyways with a recent patch. We're talking about cooldown timer on your skills.