Well, as far as I can tell (and I've read most of the website, plus info from related sites) it seems to be a fair setup. I don't know how much a shrimp can understand things, but I see food, oxgen, and a nice habitat. That is what we provide for our pets, and as long as you don't mistreat them (ie: shake the crap out of them) I see no problem.
But it is nice to see people are concerned over things like this.
A bad example of something similar is the betta with a plant. Instructions are to not feed the betta because he eats the plant. Very limited ecosystem, as bettas are not herbavores. And the plant can cover the entire top of the water. Big no-no for bettas.

I think the EcoSphere has at least been well thought out, unlike other things. ::cough... betta in a vase... cough::