I’ve got a couple responses to this.
Firstly I’d like to that there are no schools that teach rewilding. The example you used, The Teaching Drum, teaching primitive skills. Mostly primitive tool-making. Rewilding is not a euphemism for Primitive Skills, Permaculture, Survival, Getting-Back-To-Nature, Ecovillage, etc. etc. What makes rewilding unique is that it goes beyond most modern conceptions of hunter-gatherer land management routine and social structure.
The only program that I think that you could call a rewilding school (and actually, it makes rewilding look rather behind) is Martin Prechtels, “Bolad’s Kitchen.” You won’t learn how to make a bow-drill, but you’ll learn how and why a bow-drill would even matter. It’s the context, not the skills.
If you’re interested in supplementing your rewilding with primitive skills or permaculture, than I’d suggest just following your heart. If Teaching Drum captures your heart, go with it. You’ll learn what you needed to. I wouldn’t reccomend the school personally, or any school really, but if you’re heart is telling you to go, than you need to go and find out why. Maybe you’ll have a great experience, or maybe you won’t. Either way… You will have followed your heart to the right spot. I wouldn’t try to decide logically which primitive skills/permaculture school to attend (if that’s the path you want to take) but rather go with the one that captures your heart.
Of course, I’m partial to the rewilding camps. That’s because it’s about meeting friends and building a community of learning instead of paying money to a stranger to teach you skills. The rewild camp is whatever you make it. It can look like just hanging out and getting a feel for new friends, or it can look like an action packed skill exchange. Even if you decide to go to a school, as Tom Brown Jr. always says, “I can’t give you the passion,” meaning, it’s really up to you to teach yourself. You can learn the basics of primitive skills by going to a primitive skills gathering or a school, but the subtleties and refinement come from your own passion and a school cannot give you that. If you don’t have the passion to go out and try these skills now, without school, it’s not going to matter after you’ve taken the classes.
This again, is why I like the rewild camp because it’s about building passion through relationships. I hate doing rewilding stuff alone. I can’t stand it. I rarely go to gather plants or into the woods really without a friend. So while a camp may just look like “friends hanging out” there is an invisible element happening there that is more important than attending a lecture on how to build a debris hut. Who needs a lecture when you’ve got a friend to go build one with. How awful would it be to get to Teaching Drum and realize that you don’t get along with any of the students there?
All you need is passion (for direction) and friends (for assistance). Let nature be the teacher. At least than you know you’re not falling prey to anyone else’s agenda.