Admittedly not ever having been in a firefight (nor even as much as played paintball), I feel compelled to ask - is there a historical precedent for "guys ... getting wacked (sic) because they can't draw their mags fast enough"?
I mean, don't we operate in sections, with fire control orders and G.R.I.T. and all that good stuff, in order to prevent situations where a battle is won or lost based on how fast one individual can pull one magazine out of his pouch?
It just doesn't seem like a valid argument to me, but of course I defer to those who do it for real.
Having said that, the entire point of the creation of CADPAT seems to be, as HoM points out, giving us a unique "uniform" look. How many people really select targets based on the type of load bearing gear they are carrying in any event? Wouldn't target identification be made through the uniform itself, headgear, possibly racial characteristics, weapons carried, type of vehicle used, etc.? I have to agree that if something is in CADPAT that meets the standard of identifying him - especially if he is carrying a C7, wearing CADPAT uniform and wearing a CADPAT helmet cover.
Then again, in winter whites, the same problem of target identification applies, doesn't it?