No, you'd be in the same position you'd be in if you haven't downloaded the skins. If anyone is rolling the default, then it will come through same as it would whether you have other's skins disabled or not. And you can roll the default on any of the planes or vehicles, seeing exactly the same quality in your plane that you see now.
Heck, I don't care if they leave it an option. That way you could download and use the higher resolution skins for yourself, but if you have "Disable other players skins" (or equivalent) selected, then the game will default to the 128x128 texture for all other vehicles and planes around you while you roll whatever higher-res skin you want to.
The end result is still the same. The person who picks their skin in order to gain any advantages it might give (blue goon skin over water, green panzer skin on land, etc), no longer chooses their skin in vain. These aircraft were painted certain camo patterns for a reason in real live, why shouldn't we take advantage of the same?