It's not they are leaving themselves out. Only in one location on Disney site for Princess does it say guys are welcome to run. Everywhere else, it says women or female race. Disney is pushing this because women spend more money. But if it were a true equal race, there would be no limitation on male awards and starting corrals. The fact that males cannot win awards alone deters them from running, and the fact it says a woman focused race. Most men will stop there and not read the one line (which is hidden in the FAQ section) that says men can participate too, with limitation and being shunned.
It's not only Disney, it's everywhere now, women's half marathon, the women 5k, are women really that insecure with themselves that they need to have events only for them. I think its more demeaning to women by saying your not as good as guys, so we created you your own little thing so you can feel good. I even see it in my town on our town's forum site, women only bike rides on weekends, and the organizer says no men, we want to promote confidence and well being in women, but it doesn't do that. Women wanted equality, now they want exclusivity. I'm sorry, but I am very strongly against gender specific events in a sport that is to be shared by everyone and anyone to enjoy and to tell someone they cannot participate, win or treated like a second class citizen because of any reason is completely unfair and uncalled for.
Women only races are hurting this sport, its encouraging nothing but more gender specific races. I agree, by 2020, Disney will have more than 50% of their races geared toward women only. It does nothing for confidence, you want that, you compete with the best of both genders, you allow anyone to participate and enjoy the event without any limitations. If Disney wants to limit men to corral C or back (was B before, but men still kept winning) and give them no shot at awards, cut their registration fees since they don't get all the benefits.
Also, I don't want to push anyone out of any corral, I want to be placed by runners of my own capabilities and not have to weave around because I'm a <1:50 male stuck in a <2:45 corral. Just cause I'm a guy means my ability and right to start where I belong doesn't come to fruition and get ostracized with all other fast males to weave through the women to keep our pace. That does nothing but make for a dangerous course and discouraging to the women getting passed by male after male that was incorrectly placed.