I saw a ton of athletes who rode sitting up out of the aero position into the wind. That is not conducive to going faster. There were a lot of people who would have been better off on the drops vs aero. When your aero position puts you so upright that you are going to be slower that is the sign of a bad fit and/or the wrong bike for you. Poor equipment choices. tufos, gatorskins, jackets billowing in the wind, 5 bottles on their bikes.
some of the decision making that went into their equipment choices was appalling and perplexing. Maybe I should start doing more equipment consults with everything I've learned from my 3 testing trips and the reading I do.