I wish the "real mass transit" systems that I ride in my daily life were anywhere as close to the performance of the WDW transportation setup. Yes it sucks when your on vacation and they aren't timely. Disney has also told everyone that the monorails are undergoing refurbishment and to expect delays so I don't see the issue here.
"A MESSAGE ABOUT THE MONORAIL
The monorails may be on modified service and/or routes during your visit. If you are planning to use the monorailservice, please check to be sure that it's the best option for you, on your day of travel. Rest assured other transportation options will be available. "
It sounds to me like they are running exactly how disney has told us they will.