I have to admit, even as someone following an "alternative" diet, that I find this kind of thing intolerably stupid and a setback in exploring new lifestyles.

As for the stupidity of it, anyone paying the least bit of attention to herbal medicine or wild edible plants knows that you have to identify them first. Agave looks like aloe about the same way that oak leaves look like maple leaves. Easy to confuse if you are a city person that never looks intentionally at a plant or tree...

And as for giving lifestyle change a bad name... At least in the US, there may come a time when we have to rethink what and how much we consume. This is just another example that allows folks to think that anyone proposing lifestyle changes is some kind of head-in-the-clouds idiot.