Grayson, I have seen you progress into a great wealth of knowledge in a short amount of time, and it is truly impressive. Your advise is helpful and accurate... 90% of the time...
I believe you are mistaken in a few key areas...
First of all you are suggesting doing
every exercise in his repertóire in one workout. This is a dire fallacy. For one is provides no variation from day to day, secondly the time spent doing such would be massive and more detrimental than helpful, and lastly, it sets one up for for many overtraining/overuse injuries, especially in the upper body.
Secondly, and compared to the first problem it is minuscule indeed, but I believe your recommendation here:
two pulling, two pushing, two handstand, two core, and two leg workouts to match your goals (i.e muscle up would be pull ups, dips and muscle up negatives.)
Is a little overboard on amount... Two pulling and two pushing is something I will not argue (And by 'two legs' I assume you meant Posterior Chain exercises), but handstands fall under balance and there is no reason to limit yourself to two balancing skills. and they are that; A
skill. In reality they don't even have a reason for being on this list.
And onto the final, slightly iffy suggestion of core exercises... If you have a solid program with squats, deadlifts, overhead press, etc. There is no need whatsoever for core exercises, as they are already taxed enough by the loads lifted. However barring the access of weights, it is perfectly acceptable, one might argue even
necessary, to have core exercises in one's program. Just something to keep in mind.