Actually it's the exact opposite. A natural squatter's build is short legs relative to the torso.
A short trunk and long leg is a horrible lever for squatting... well it is a decent lever for the low bar squat, but bad for the Olympic squat. Longer legs/shorter torso makes it much harder to build the quads.
As far as your original question, I am not aware of a single, NOT ONE, very strong or very muscular individual who ever measured his segment to select the proper exercises... EVER. I've never seen any high level strength coach do so either. I think that it is overcomplicating everything or just trying to make it appear more complex (so you look smarter) than it really is.
THAT HAVING BEEN SAID... body type/structure WILL affect exercise selection, but rather indirectly. See, certain body proportions will lead to muscle dominances... for example if you have long legs and a short torso you will tend to build the glutes more than the quads when doing basic leg work. Whereas if you have shorter legs and a longer torso you will build the quads more easily but the glutes will be hard to build.
So these muscles imbalances will create weak points in your lifts and you will have to select assistance exercises to fix those weak points. Thus some of the assistance work you do will be indirectly influenced by your proportions. But measuring proportions to select exercises is not the way to go.