> To me it reads like anesthesia in the MRI shouldn't be allowed or needs better supervision.
It must certainly be allowed, as it greatly benefits some patients. Believe me, I'd be most happy if I was forbidden to enter MRI rooms.
> I think they were saying theres literally no one there to help.
This might happen quite infrequently, and usually just for a very short time. Problem is that others have their own jobs to do, and sometimes you get unlucky at just the worst time. It's certainly not common that no one's there, and theres almost always someone near. But since you can't leave the patient, it might be that you have to yell for 20-30s before someone notices you're in trouble.
> Emblematic of the broken US healthcare system. The guideline creates an easily preventable scenario where the patient is highly likely to die for no real reason.
I'm not currently practicing in the US. I don't think that's a fair assessment. Guidelines are born in patient blood, and although adaptation is a must deviating from guidelines still remains a bad idea most of the time.