This seems to be a fair assessment and pretty true across multiple sports and hobbies.
-When they changed the weigh-in times and IV rehydration rules in the UFC it caused a temporary uproar in multiple major camps.
-When they changed the jump height by a few inches in flyball whole teams completely reconfigured all of their dog relays.
-Minor changes in leg entanglement rules send the competitive BJJ world into a near annual rules bickering uproar.
-I think even autocross had a hubbub over R compound tires in various classes if I'm remembering my old SCCA drama correctly.
To some degree, these were all also rapidly growing small niche sports finding their way as they evolve over time into something more established. It would make sense at the end of the day that USPSA is going through similar growing pains as it finds its way.
I imagine USPSA will go through the same convulsions of expansion and growing pains to the same positive and negative fanfare that all the others did/do/will as it similarly evolves closer to its eventual final form. :shrug