Truth be told, I like it. It "feels" like I imagine Rio de Janeiro to be: warm, fun, carefree, colorful… The color pallet says summer and the stylized figures suggest teamwork and community. If I were the AD, I might have asked to see a version where the Olympic rings were more incorporated into the design somehow. Overall though, I think it compares well to many of the past Olympics city logos
I'm not naive. I know Brazilians deal with many of the same racial issues that we deal with here—many to a larger degree. But, for some reason, I was holding out hope.
attribution: I pulled the attached logos off of wikipedia <http://en.wikipedia.org/wiki/File:Rio2016_logo.jpg>, <http://upload.wikimedia.org/wikipedia/en/1/10/All_London_2012_logos.svg>