First I think I will pass.
Second, they are trying to sell something. They are not going to say well they are almost as good as a regular egg.
Thirdly, pretty sure chickens and eggs are sustainable. They been around thousands if not hundreds of thousands of years. Sounds pretty sustainable to me. Seems like they didn't pay attention in biology that day. Pave over the world and then plants aren't so sustainable are they?
Fourth are their ingredients non-gmo and all natural and or organic?
I could go on and on but won't. Just can't tolerate someone telling me what is right in their mind and then recommend I think their way. Just can't do it.