Well that's your opinion, and while others might think that as well, there must be enough of a demand for the sport that ESPN would put it on in primetime on the main ESPN channel.
Look I'm not saying women's sports are the most exciting in the world, but lets not kid ourselves here, if we're going to vote on best coach, you have to take everything into account. Wins, championships, graduation rate, etc...
Even if we leave out the scandal from PSU, on a historical level, Paterno doesn't match up to Summitt. Boring women's sports or not, what she helped build makes anything Paterno did look small in comparison.