I think one of the big challenges for Xert is create a user interface for a population that is used to progressions or canned programmes that you don’t question or deviate from.
Now that we are empowered with all this settings and choices we don’t have the full handle on what we should be doing. Some education is certainly needed, the format is what is in discussion IMHO. I have learned through the glossary, podcasts (there aren’t that many) and this forum, but it’s understandable some people prefer it differently.
My breakthrough with Xert (pun intended) was when I realised that the model is an approximation of our fitness and it doesn’t cover all aspects of it (“YET!!!”, I hear Armando saying). And is not a watertight system too or even finished - at least is my perception reading some posts.
In summary, don’t take Xert as gospel but instead, as a damn good mathematical explanation of your fitness. Accept what it does well, and step by step add small concepts to your knowledge. You also need to understand its limitations.
I kinda like that everyday I learn a few bits more about it.