From what i know (it may not be true), the strobe test is to test you for the possibility of siezures.
It is known that different frequencies of light pulses can cause the brain to enter a siezure, not good when you are flying an aircraft. So the strobe simply tests if you will succumb to such a problem.. i doubt that they care if u didn't like the light right up in your face, i wasn't too impressed with it either!