Majority =/= best, just because they're the minority doesn't mean he can't think they're the best.
But they were already wearing the white version of the V-Ros. So by that logic they've been "advertising" all season?
My point is you can't say it's "purely for advertisement." Sure, that could be the reason, but how could you know the true reason. You have no way of knowing whether they picked the uniform color and then the shoes, or they picked the shoes and then the uniform color. It could be either, and without full knowledge of everything that went into designing the uniform, you can't make that statement.