There may be more men harassing women but you are writing off every male who has been sexually harassed at their workplace with your comment. Additionally you are spreading the idea that sexual harassment is only done by males to females which is incredibly harmful and short sighted.
If it's anything like everywhere I've ever worked, it's mandatory for everybody, and they go out of their way to pretend their not just talking to the men about the women, but it's actually twice as uncomfortable because all of the women - for whom this training is actually for - are sitting next to the men, for whom the training is actually targeted. So you sit through an hour of uncomfortable filterspeak that would make the 80's Soviet Kremlin cringe.