Ah yeah... this probably isn't a viable solution for people who often use smart disable. In all honesty, I usually don't as my setup can handle a decent bit of load, and I have plenty of other ways I usually try to manage CPU stress. (...Like manually disabling/automating things in the playlist or making things similar to how Alex Moukala made a bypass inside of patcher in his video. He also has another video about minimizing CPU load that I saw a few years ago that showed me more tricks to use that I was able to expand upon later.) Usually I know which plugins will give me the most issues with CPU and already know how I'll handle them when I load them up, but you make a great point, still.
Hopefully the new mixer system actually does handle that problem in due time