All of this bad as it is, malpractice and negligence is not inherent to any one group.
Every group has people that for some reason or another participate in bad care. This group of CRNAs just got caught. It doesn't mean any other CRNAs, AAs, or MDAs are bad or good - it just means this group got caught. There are plenty of bad people still out there. This isn't damning to any profession, just to these 6 nurses (and probably others around them as well).
Any of us, honestly, can look around at places we do work or have worked and were aware of things going on that weren't good - to lesser or greater degrees.