Do you know why WWE doesn't include confidentiality provisions in their talent contracts, which would prohibit wrestlers from disclosing anything about their time with WWE? It's not because wrestlers are “independent contractors”, and a confidentiality provision would arguably be enforceable as long as it was “reasonable” (whatever that means) as to duration and scope. Does Vince just not care? Because based on some of the other petty stuff that WWE has sometimes done when talent are leaving, it seems that a gag order for a period of time would be something they'd enjoy imposing.
I feel like if they tried that, then wrestlers would reasonably have the ability to pursue the “But I'm an independent contractor” route in court and open up Vince to legal roads he doesn't want to go down.