The problem in this case is not the CRNA per se, it's that this CRNA was incompetent, and that there was no anesthesiologist backup. Both of those deficiencies are the fault of the Surgery Center, which hires the anesthesiologists. The lesson from this case is to makes sure that there are competent CRNAs and competent anesthesiologist backup.
Why all the worry about CRNAs? If you don't want to work with them, just work in an OR that will provide you with only anesthesiologists.
The hospital that I work in has CRNAs working under the supervision of anesthesiologists. Honestly, I would let any of them do my anesthesia with no reservations whatsoever, while there have been anesthesiologists that I have known that I wouldn't let near my patients, let alone near me. It all depends on the individual and their competence. They also need to be working within their comfort zone.
Overall, there seems to be too much energy devoted on these forums to worrying about ancillary providers. They are not going to be your problem in practice. When you get into practice, you will succeed based on your own skills and abilities. (true) The nurse practitioners, midwives, PAs, homeopaths, naturopaths, chiropracters, and faith healers will not be your real competition. Don't worry about them. You don't want patients who will go to them anyway. (That's kind of extreme and unrelated. I mean you are entitled to your opinion, but, well, it is kind of extreme in my view, but whatever.)
Also, in most cases, it's DOCTORS who hire the lower paid ancillary providers, to increase their own income, and not have to share it with a partner.