Well, it's always good to have an official diagnosis, just in case someone disputes your claim, but frankly, no doctor has ever questioned my claim that I am gluten sensitive, (or sensitive to anything else, for that matter), so hospital procedures have not been a problem. If Dr. Fasano ever gets his zonulin-suppressing pills on the market, and you should want a prescription for them, you might need a diagnosis, (unless you are have an exceptional doctor). Frankly, I'm not convinced that such an approach to controling GS symptoms is completely sound, in the first place, but I'm guessing that many, many celiacs will line up to try it, since most people would vastly prefer popping a pill, over watching their diet. I view the treatment as more of an insurance policy, when traveling, or eating out, rather than as a daily program, but I suppose we'll see how it fares, when it hits the drug store shelves.
Otherwise, as you say, "what's the point". I believe that someday, the evidence from the Enterolab test results will be accepted as factual, in the mainstream medical community, but of course, that day is still a ways off.

I've been GF for almost 8 years now, and absolutely no one, has ever asked to see any diagnostic evidence, when I told them that I was gluten sensitive. I've even told some doctors that I'm not sure if I have MC, or I'm "just" a celiac - all I know is that I'm as sensitive to gluten as any celiac alive, and I had to remove a bunch of other foods from my diet before I was able to achieve remission, and they've never questioned that, either. If someone ever does dispute it, I'll probably insist on chowing down on a big plate of pasta, followed by a big slice of cake, sweet roll, or whatever, and then sitting in their office until the proof "presents" itself.
Seriously, it's never been a problem for me, but as always, YMMV.
Tex