I'm not sure what testing Hambini has been up to, last I saw him he was calling for the death of Damon Rinard (who is a really nice guy, by the way! and great cycling engineer)
However I have plenty of first hand field testing data showing that this is very obviously not true, as do hundreds of other people. We ride in the real world with power meters and timers and we can detect these things even in gusty real world conditions.
Just two examples:
http://www.trainingandracingwithapowermeter.com/2010/10/chal...
and
https://betterbicycles.org/science/speed/validation-of-bicyc...