It is not a "sad reality" it is a reality ... there is nothing to be learned by sucking down a tank of EAN that would not be learned sucking down a tank of air. All that nitrox divers really need to know how to do is to select the right mix, control their time, control their depth, and deal with OTUs ... that's about it. What does that take? An hour would be generous. The entire EAN Training industry is an artifact of the, "voodoo gas reaction," of PADI and a few other fools back when Rutkowski introduced it, it was amazing how quickly they changed their tune when they decided that it could be added (had to be added, since incorporating it into BOW, as it should have been, would be an admission of being nincompoops) as a separately priced product.
A sad reality was a mis quote on my part. I was trying to say that there is nothing that can be learned in water you cant learn in class. I agree that it only needs a short hour or so. Sorry for my misrepresentation