Sure, but the degradation of the UX based on these changes seems to be pretty exaggerated in my view. How many of these powerusers are only using Reddit through a 3rd party client and would quit the site over having it closed? My guess is that the answer is "not many", and Reddit is clearly banking on this... and why would I trust angry activists over Reddit's own internal analysis?
More concretely, my impression is that these changes will not hit RES meaningfully. If they did, I would be unhappy but it would not break the site for me.