My motivation for changing the rules is for them to go back to how they used to be.
Over the years things like: Extra modifications, extra weight, more mag capacity, lights, belt placement, magnets, and other stuff were all added randomly in my view.
Additionally, USPSA is the daughter organization of IPSC so I believe the rules should be as close to similar as possible so it is an easy transition for those competitors who chose to compete in both.
Lastly, yes CO is the most popular division by far which mean we should be very very carful to change rules around willy nilly. That why I believe making the rules go back to how the division was started would be a good starting point.