Seems like "Part of" is the key word, and it also appears as though the goal of each day is to tell people about it in the comments. A solid calisthenics program would probably be more valuable imo.
I love calisthenics. I do the Recommended Routine over at Reddit Bodyweight Fitness: https://www.reddit.com/r/bodyweightfitness/wiki/kb/recommend.... I do this routine in addition to my Olympic weightlifting training. I do CrossFit for fitness testing and for that HIIT stimulus, not for "training" training.