I think you need more than just a YouTube video to "debunk" the nature paper that they have published and that is linked in their github. They seem to acknowledge that while there are some limitations it still is a viable source of water for a lot of regions.

What is surprising is that thunderfoot didn't lose his habit of repeating himself over and over again. I'm counting 10 videos "debunking" the same idea of a bottle that extracts water from air (which is not what this project really is, it's not a based around a bottle)& he's been beating the same dead horses for 6 years now.

Though to be fair, he's now more into into making misleading videos about SpaceX and obsessing over Elon Musk.

Edit: Actually it's just weird at this point,his recent videos and their titles are so bizarre. It's either cheering at failures or Facebook tier thumbnails "Owning" Elon Musk. Yeah, I'll definitely stick with the Nature paper.