I've been very vocal about that situation in the past, but, I will restate it. This is Disney, this is not a world class marathon run. It is there for everyone to participate in. It has been used as a spring board for many to start to feel good about themselves again after years of physical neglect.
I know that "hardcore" runners get all bent out of shape because everyone is allowed to run in it, but, lets face it this is a qualifying attempt at best and not a world class venue. I also challenge the thought that a lot of out of shape people participate in the more serious half or full marathon event. They know they cannot do it without killing themselves and the few that do lack in enough judgement to know better are quickly either tagging along at the back of the pack or dead on the pavement. There is no where near the problem that it has been built up to be. I'm more upset about those that are serious runners that join in the 5K knowing that they will win it and then complain about those that are slower being in their way. They take themselves and the event way to seriously.
An example of the good that an event like this can be to someone that has been an overweight couch potato for decades, can actually achieve something that they previously have been unable to do. My sister lost 100 pounds and the ability to just participate in such an event and being able to was a huge boost to her ego and resolve. The other complaint is that they get a rubber, refrigerator magnet style, of medal for participating. Sorry, if that upsets the jocks of the world, but, it means the world to someone previously unable to accomplish the feat. If that takes away from the first place persons accomplishments, well all I can say is life's a *****.