FYI although not the angle you were getting at here PopSci did an article on this Kickstarter in April and covered a bunch of the criticisms including a link to Thunderf00t's video. They have plenty of caveats on when it might work.
https://www.popsci.com/this-device-may-pull-water-out-thin-air-but-not-as-well-as-we-hoped
I believe some of his argument about the heating effect of condensation is negated by the thermal conductivity of soil. Depending on how fast the energy is released it can be effectively conducted away just like a heat sink does on a CPU. There's effectively an infinite heat sink attached to that hole in the ground, but it can only conduct so fast. I haven't watched all his videos on this device (if there were any more) but it sounds like he didn't quite factor in all the thermodynamics.
I do find his tone is not always fitting of what he is attacking. In this case it feels like he is most pissed about the institution of UCB. It would however have been a great teaching moment to talk to the kids. The marketing flimflam was probably put together by someone not at all familiar with three actual physics. Remember most people don't learn by being attacked. Defense is a natural instinct. A Socratic approach would make his point much better in this particular case. In others he is undeniably up against a deliberate scam which warrants a different approach. Even then he could often make his point better in a Myth Busters style by reproducing some device and proving it doesn't work.