What I have come to learn about CT is that he is a problem solver and an innovator. He likes to address issues certain people have (performance, strength or physique or all 3) and he likes to innovate by introducing new exercises or old exercises that are very effective and from the past. My point being is that he appears to like to prescribe methods to solve an issue and/or describe methods and techniques. Thus he is trying to both educate someone how to train and at the same time teach someone to solve their own issues. His methodology appears to allow someone to individualize their plans relatively easily. That being said he still focuses on the main big lifts (squat, deadlift, bench, overhead press and an olympic lift variation) but he is not dogmatic enough to say no accessory exercises or that an accessory exercise can't be used to fix a performance based issue or an injury (i.e. adding farmers walks, facepulls, curls, chins, etc...)
CT reminds me of the Bruce Lee quote ?Absorb what is useful, Discard what is not, Add what is uniquely your own.? One can even look at if from a via negativa approach where you discard what is useless through negation to get to the route core of what is important.
I could be way off so sorry if I am.