Here's how I see it. This issue is about to come to a head. As anesthesiologists (and prospective ones), we see our patients in a completely different light than the CRNA...
Complications mean so much more to us who have pored over the science behind the physiology in that we can act infinitely more sensibly than the trained monkey.
Eventually, the country will see this. Unfortunately, it looks like they will find out the hard way - well before any unbiased study can show them.
The insurance companies will take note first. Anesthesiologists have enjoyed the benefit of lowered rates over the years due to fewer complications....CRNA's will bare the brunt of the full load of liability.
The for-profit CRNA factories will keep saturating the market, and as CRNA salaries continue to drop, the malpractice insurance will rise. Keep in mind...these are already people with nursing degrees and years spent in nursing (ie: not the most financially sound individuals to begin with).
The CRNA bubble will burst. CRNA's will no longer be able to afford the astronomical malpractice fees, Surgeon's will be fed up with the liability as well, and the life of the CRNA will be worse off than it was before this push for autonomy, as hospitals will just straight up stop employing them at surgeon's requests.
I for one think CRNA's do have a place in medicine (as do many mid-level care providers)...If they stay in their place, harmony can be maintained. They are the autopilot of the jet liner....programs exist that would launch and land planes sans pilot, but how many passengers would submit their take-off and landing to the autopilot program just to save a few dollars on their boarding pass.