My point is, do you really expect a random fill station operator to go look up standards? Or do you expect them to go by what it says on the card? If you're a fill station operator and the card says "trained in 32% Nitrox" or ("trained in drysuit"), then why would you feel like you were not perfectly clear (from a legal/liability perspective) to fill them with EAN32 (or rent them a drysuit)?
SDI doesn't have an AOW card. Do you have an SDI AAD card or an SDI ASD card? Does it say that you are trained for Nitrox? I don't have an AAD (or AOW) card. But, my SDI ASD card doesn't say anything specific about my training. I bet the SDI AAD card doesn't, either. So, how do you conclude that presenting it would be just as good as presenting a GUE card that does specifically say "Trained in 32% Nitrox"?
And what difference does it make to you, the fill station operator, how GUE teaches their course, as long as the person asking for a fill of EAN32 has a card that says they are trained to use 32% Nitrox? Do you go online and read the course standards for every agency that someone presents a Nitrox card from before you give them a fill? That sounds exceptionally tedious. Especially if the card says right on it what they are trained for.
Also, I note that the link you posted takes you to GUE's "marketing" for their course. That is not their actual instructor manual (I don't think). So, you can't really go by that anyway. You don't actually know if the instructor's manual includes things like teaching how to use an analyzer. Just because it doesn't say so in the "marketing" blurb for the course doesn't mean anything.
I have the SDI Advance Scuba Diver card, so yes an ASD. Now that the semantics are out of the way, I would also say that any agency can have whatever that want printed on their card. So SDI could in fact have "Trained in 32% Nitrox" placed on their ASD card. Does that mean you are Nitrox certified? I would say no or you could read it as you are and say they are good to go for Nitrox 32% and only 32%, not 28% or 30% but only 32%. Sounds like if you read it the way you are then the "Fundies" card is good for Nitrox, Drysuit, Rescue and a whole host of certifications..