Agreed. However, there is no reason to believe that a GA can give a better result than just randomly picking points in search space and doing local optimization around those points. GA's are evo-babble with much hand waving about 'correlation' during mutation or crossover rubbish. The 'curse of dimensionality' in global optimization doesn't go away by using GA's nor can you talk about their effectiveness without characterizing the landscape you are searching (the no free lunch theorem).