I don't think anybody's making that claim, even to themselves, since the stripes don't have black nor do the red numbers on the white jerseys. Those all show up just fine.
I was half joking about the random black drop shadow but in reality, I think there may be some grain of truth.
I see it all the time with client suggestions, and my with my students. Something isn't popping the way they want it to so the gut reaction solution is add a black outline or drop shadow. Unfortunately, more often than not, the true problem is the logo/design is simply sub par and no amount of outlining will fix that problem.