Hmmm. I like any idea to save water and pollution from human sources. Thank you for sharing this info!
What troubles me is the fiddly looking parts, for instance "make sure to NOT sit forward when the sub-lid diverted cover is extended" or whatever it actually said.
I've never seen one of these, but I put the idea with other "contraptions" which are well meant. I personally would be just as happy with a straight bucket toilet and pump sprayer to clean. Dirt and sawdust I trust, maybe a little shy of moving parts under my bum that might need disassembly to clean. Perhaps I don't understand.
Clearly the creators put some effort and thought in there, but I'm happy with the old mousetrap, so to speak.