Thank you for making that clear, ana. I'm glad you don't think there's anything intrinsically wrong with blousy men's shirts, though what you wrote did have that connotation, I felt: "For me, the main problem is that the men's shirts look like blouses. If they were in a plain colour they wouldn't be so bad..."
Women can wear shirts or blouses so men should be able to as well, without it being a "problem".
I don't think it matters that the uniform is hideous... so long as its hideousness doesn't detract from the people's sporting prowess. Roll on The Games!
(hopefully!)