I disagree with you but what else is new. No one needs 4 or 5 different bicep exercises. I understand the need if you're a competitive drug taking bodybuilder but that's not a true athletic activity is it?
You can get big and strong using as little as four weight exercises. Further for athletic training to become a better athlete using supplemental weight training bodybuilding training doing a split of multiple different exercises is insane. Many American football players do something like an explosive movement like a power clean, squat then a press. That's it.
Many ripped built body weight exercise guys are lucky if they use one movement per body part.
You can get all you can out of lifting for bodybuilding purposes if you train naturally with one or two movements per body part. I content the majority of athletes and bodybuilders would be served well training the whole body in one shot like the lifters of the past. Having said that I have used split training for the majority of my 50 plus years of training. It's easier than a whole body routine. No way to dispute that. When you do a whole body routing like Grimek, Reeves, Kono and host of others you have to limit the amount of exercises you use or it couldn't be done. Reeves used something you might be happy with. He used three exercises a body part for three sets each.
It is purely a myth that "old school" guys did these short little workouts. At least the ones with development. They would do multiple exercises per bp, but did not split their routines. Essentially, they did full body....for 3-5 hours a day. That was part of the "sleeze" of the original Muscle Beach-many of the guys didn't work and just lifted ALL DAY which was more frowned upon in the 50's then it would be today even.
Muscle Magazines did not "impose" splits on people. Why would they? Is it good marketing to recommend MORE work? Do you know many diet books that say "this diet is hard to follow?" Why do you think HIT still has any followers? Because people want to believe that less is more.
Also Muscle magazines, people following the wrong routines is not the magazines fault, it is the fault of the enthusiasm of the trainee. NO Muscle magazine that I know of tells beginners to do splits. I have plenty of books from Weider, Kennedy, etc (the publishers). They have plenty of basic routines, and in fact preach moderation. Ironically, the one that pushed "basics" and "O-lifts" (Hoffman) was the same one having his guys use d-bol while saying it was isometrics causing their gains...
On another note female gymnasts train 6-8 hours a day-6 days per week. If these 13 year old girls can do it, don't you think that guys with higher test can do it? Course they can.
Plenty of natural bodybuilders with great development train 4 to 6 days a week. None do full body workouts.
Another thing to consider. Full body's are considered superior as the body works as one unit. This is false. Reaction to and adaptation to exercise is EXTREMELY specific, and even has a name in exercise physiology: SAID-Specific adaptation to imposed demand.
In fact, most strength gains are very specific to a range of motion and rep range.
Case in point: Go out of your groove on a squat or bench press and see how "full body" your training is lol. Change your grip width or squat stance width. See how your ability to do the same weights plummets. Most activities/sports call for specific adaptation.
This means that even if you are training each bodypart with an exercise you really aren't doing "full body" as you obviously aren't hitting all aspects and angles.
Full body is an illusion.