Just think about a time of year, like next month for example, when baseball teams, track teams, soccer teams and cheerleaders will be there in abundance. Put them all in one place and you're asking for legal issues, especially being a company as big as Disney.
They are all ready pretty much in one place now. Most events participants stay in the same resort as they have package deals. having one resort closer and geared toward teams seems logical. Look at the Olympics, Pan Am Games, World Championships, they all stay together and you don't have reports of trouble.