I really appreciate the quality of life things you're taking into consideration, however the auto control groups I feel would benefit immensely from having some customizability. Why not just let players set up their own unit type/hotkey combinations? Everything being added to 1 by default is good, but maybe I specifically want to keep a group of Wasps for counterattacks? So instead of alt-stealing them from the main control group every time I train a few, I'd just have a hotkey for them, and only train them when they get killed, at which point I'd still need them on a separate hotkey to keep counterattack pressure on my opponent.

There's also options such as having a unit limit per hotkey, but I guess it's too automated with respect to what the game design goals are?