I guess since I was raised in a gambling city (San Juan), I don't really view anything wrong with it.
I mean, it was cool being 10, chilling in a comped hotel suite until about midnight with free movies cause grandma was gambling. I don't even want to imagine the comps that WDW could offer. I don't personally think that gambling at WDW will destroy families and corrupt children, especially since its the parents job to make sure that doesn't happen. If parents can get babysitters for 1 night to go to Pleasure Island, they can get them to go to a WDW casino, plain and simple.
But people tend to jump in throats when they don't want Orlando to become the next Atlantic City, which I can entirely understand. 1 Atlantic City is enough.