You have to take something else into account, and that is goals. For a WWE wrestler, travel schedule and work demands (very physical in-ring product) will dictate what they do in training.
A heavy travel schedule and always working out on the road will make following a periodized program very difficult, so roughly sticking to some sort of plan to train the whole body is the best anybody can really do......also, I would imagine if you have to wrestle 4 nights a week, being sore or possibly loaded up from training and banged up isn't a good thing.
The gym I used to train at was a regular WWE stop when they were in town, most of the guys are pretty cool and the ones I would get to chatting with would say basically what I posted above.
If a guy looks good and is big, there could be many reasons for that, I wouldn't advise you to blindly follow anybody else's routine. You need to know what works and how to train yourself. Ideally, you should be improving in things like bench presses, military presses, squats, deadlifts, barbell rows, etc. and eating more calories than you burn if you want to grow muscle. There is no magic set/rep routine or combo of exercises, just get good at big lifts and eat.