The show has some interesting ideas, and for the most part employs actual science. However the practicality of a number of the things demonstrated is very low, if not totally pointless.
Additionally, Andy, the survivor / hacker, is a vegetarian. The ability for humans to totally avoid meat is a luxury excess of our modern society - a vast array of fruits and vegetables are available year round even in temperate regions. In many of the areas he visits, the only type of food available for harvest is animal. It's hard to take a _survival_ show seriously when a person would die from not consuming the available food.
A better format for this show would have been some kind of survival tribe type setting, where Andy was with other people that were more of the true survivalists. They would have a village type habitat He could then provide them with tech to make their tasks and lifestyle easier / better / more pleasant. However a problem with this (as illustrated in the few interactions he had with other people on the show) is that there would be a lot of pushback about the ideas simply not being practical or effective enough to bother with in the first place.
Ultimately, the settings are too contrived (he just happened to have peltier devices with him one time...), and the host is too naive and inexperienced in deadly survival settings for us to feel like we should be learning how to survive from him. That's why I feel a different format for the show would be better received.