It's not a public facility. Their wifi, their rules. Happens to me all the time at many, many businesses. Turn off wifi and use cellular, problem solved. I never get bent out of shape by it.
When it comes down to it, rentmen is a site that facilitates illegal activity. You really can't fault Disney for blocking access to it and similar sites. And no, I'm not a prude; I do hire. I also sat on a jury once for a prostitution-related case after telling the judge during jury selection that I thought prostitution should be legal.