The point you make is understandable, TeeDee, but I've just looked at other high profile bushcraft course providers, and I think the course compares quite well. I quite accept that there will always be circumstances when other things must take priority over our time or resources.
Speaking more generally, I don't know what is involved in arranging a bushcraft course, because I have never done it. Even so, I imagine that there would be a cost for the use of the land, hiring the speakers and instructors and feeding them, and that's before paying whatever type of insurances it would be that you would need. I'm suppose it is one of those things which, if you tried it, you would find it harder than it might at first appear.
I have thought about this question round and round, but ultimately it comes down to this: It isn't for me to say how anyone should spend their time or money. Even so, we are all entitled to hold and express an opinion. If not, what are forums for?
Clearly, I don't know what anyone else's circumstances are but in my view, paying for some world-class education and a week in the woods is a fair investment. One could argue that it is a better investment than a lot of the shiny equipment that is raved about.