Am I going crazy (can't be, I'm already there) or does an inebriated diabetic (poorly managed to the point of amputation) suicidally depressed patient who is vomiting and in and out of it call for a little more assessment than a BGL and "do you want to go to the hospital?"
Frickin hose monkeys IMO
Those "hose monkeys" may have mucho experience dealing with that particular individual. Being drunk, being a poorly managed diabetic, being chronically suicidal usually isn't an emergency medical problem. A trip to the local ED isn't going to fix those chronic problems. Also being drunk, unless it is causing other more acute problems, doesn't really need to go to the ED. All the ED is going to do is "Metabolize to Freedom" and once they've sobered up enough, off they go. Where things get interesting is that if the person is altered, the "do you want to go" question isn't a question. Someone that's vomiting, in and out of consciousness, and has a high BGL might just be in DKA. However if the person is lucid / Alert and Oriented when awake, that gets to be really a tough spot.
That being said, I used to take care of a patient who was pretty much in DKA whenever he was NOT in the hospital. He'd go out and drink soft drinks, bump his BGL well above 700, would end up going in to DKA, pass out, and someone would usually see him as a person down and call 911. We'd fix him up and then we'd see him again within a few days. Eventually he passed out where nobody could see him... Significant investment of time, resources, social work attention, and so on didn't fix his problem and (unfortunately) he likely inadvertently ended the problem. I don't think he was suicidal, I just think he didn't care if he lived or died, and probably figured he'd live a long time because he always kept getting rescued.
All that being said, if you think the crew handled the situation you're referring to inappropriately, contact the QA/QI people and let them know of your concerns. It very well could be "unfounded" as the crew may have an articulable reason for what they did in the overall case or it may evolve into a much more significant investigation that results in serious discipline for those involved in that particular case.