I've had them. They're fine. But this is overselling the variety angle. The meat eater equivalence of forage like this would be game animals. In my experience and extrapolating, the taste difference between game and farm animals is generally greater than among the green vegetables.
Not sure I agree, I think there's as much difference between spinach, leek, fennel and Brussels sprouts as between beef and deer and that's without foraging into fancy vegetables...
Sure, but spinach, kale, mustard greens, chard, and arugula are all pretty wildly different. With different textures, flavors, and other things going on.
