Wandel is doing something right, that's for sure. But for me he goes a little too far in ignoring established wisdom in his attempts to reinvent the wheel. While I admire the idea of going back to first principles, debunking myths and applying new perspectives, sometimes you need to acknowledge that things are done this way for a very good reason so let's use that as a foundation, instead of going further back and eventually, painfully concluding that you have not been able to reinvent the wheel.
Here is a particularly egregious example that simply causes harm to those trying to refinish wooden floors: https://youtu.be/mHiF8xwjRGI?t=357