I just watched that. His point was that training in a weightlifting club helped him build his base, not that clean and jerks built his base or just "olympic lifts". He mentioned squats, deadlifts...and then said "the cleaning exercises"
"This was the stepping stone, this was the foundation...and I always feel sorry for any bodybuilder that does not start in a weightlifting club first...because this training the bend over rowing, the "cleaning exercises", the snatching exercises, the squats, all of this...the kind of power things and all this that is where you get the strong back, and the trapezius and the deltoids and the basic muscles...."
He is discussing not ignoring those exercises that build that solid base...and he is also speaking to a weight lifting club and trying to relate to them.
One thing you need to understand about Arnold, many of the things he says publicly are because he knows how to get people to listen and he knows how to tell them what they want to hear.
Using that speech as an outline to his own real training would likely be a mistake unless within context. The man is a talker.
I agree that you need to build that solid base first. Squats, even deadlifts, bent over rows...all of those exercises help build a solid foundation.
It doesn't mean you need focus on an entire olympic lifting routine. It means you need to understand why you are doing certain exercises and whether those movements will truly help you reach your goal faster.