random thoughts:
I don't know of that bodybuilder guy. He's big though. Fast forward ten years from that photo and it's amazing how much leaner guys became. So, much like every cyclist, he's too fat for the sport.
Whether he went to the Olympia or not, if you're going to incorporate weights, squats make more sense to use in some capacity. Even if it's as a tertiary exercise. The mistake folks make is poor form, not just on squats but on most exercises. It's really easy to get hurt squatting if you think you're stronger than you are. I always advocated for lighter weights and the striving of perfection of form. If you use proper form it's impossible to go too heavy, because obviously you would no longer be using proper form. But hey I got out of all that before I made the mistake of going pro. Throw too much weight on a machine, and throw it around it…yeah it locks you into a range of motion, but start twisting your body and you can get just as hurt.
Even if a guy is super knowledgable that doesn't mean he's infallibly correct, or that there isn't more than one approach. The world isn't going to stop spinning because some guy doesn't advocate an exercise for some other guy.
I know a lot of old time cyclists with training ideas that haven't marched on with time. Just because a guy accomplished something, or used to be a good coach, doesn't mean it's still the case. I'm friends with a rather famous (american famous) coach. He's had his hand in a load of well known cyclists and teams. His ideas though are to my mind pre-modern era. That isn't to say they wouldn't still work, but his system would be heavier on miles and perseverance perhaps than something that would look familiar with modern power based training.
In reading I discover I don't care what any of you do. I don't care if Doge (who probably hasn't done a lick of it) thinks P90X workouts are too hard.
Doge, having a low uscf number, surprises with his willingness to place his son's career in the hand of others. Many parents would muck up the works thinking they knew best.
The whole 'not a lot of pro tour guys' argument is silly. You guys have no flipping idea how any pros really train. That stuff is all super secret and dependent, wait for it, on who a rider is and what they need to work on. If you want to look at Froome and say 'that guy doesn't squat' I'd counter he doesn't lift his grocery bags either (he couldn't). It's not his job, or useful for what he needs to accomplish.
