uma
Seems to me if the dreaded multisport athletes are coming around and kicking booty on the "pure" cyclists it would just be added motivation to train harder/upgrade your gear. Pro tour teams all have guys with different strengths doing what they do best on stage races. You have your TTers, your climbers, your domestiques, and while there's crossover with the skill sets they all have their own strengths. TTers focus on winning TTs, not trying to ride every PIR, crit and road race. Multisport athletes tend to do well at TTs because that's what they train to do! They're not trying to win BAR points and stage races. As one racer I know said "You have to train your *** off just to be mediocre in this sport." This is true regardless of category or even specialization.
Or as an (in)famous coach I know once said "If your only reason for racing is to win, you're probably going to be disappointed a lot. If you're not disappointed a lot, you're probably in the wrong category."
S'cuse me. I have some meeting of teams to finish coordinating! And then there's that matter of that sexy P3 TT bike to consider...