Some of the "subcontracted" sites that do marketing stuff are better equipped to handle a top-level domain than a subdomain.
And a subdomain requires negotiating with someone in the bowels of IT, whereas anyone can register PayPal-communications.com
And a subdomain requires negotiating with someone in the bowels of IT, whereas anyone can register PayPal-communications.com
And as soon as the external agencies are involved, they want as much control as possible. I don’t blame them: setting up DNS entries for some stupid marketing site rarely rises to anyones priorities. So they route around internal controls. Everyone is happier, and everything gets slightly worse.