Over many plays, sure, but how long should one person have to sit there to see results? As far as I can tell, there is no persistence between sessions. I'm saying making the game 'easier' for the player would decrease both the number of plays needed to get better evolutionary results and also decrease the time between each evolutionary cycle.
I've used GAs before in school. One example way to do even session-less evolution faster would be a distributed client/server model where the indivual survivors across all game instances who are lasting the longest are crossbred but that would take longer to code ....
