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The bus thing is odd and I was surprised when my TA told me. In the future I'd use Uber in your situation. Or even rent a car. Car rental isn't an option for me, but Uber is definitely my choice over the DCL transport from port - WDW.
Sounds like an excellent reason not to book a land and sea vacation with Disney anymore. If their own bus transportation is allowed to be so annoying, how can I trust them to do everything else right? Yeah, angry rhetorical question, but still it's amazing to me that having angry people on buses doing nothing for an hour is an acceptable procedure. Disney is a world class company with an unparalleled reputation for putting the customer first. Tiny details of the guest experience are debated and sweated over. Yet they allow hundreds of guests to sit in a parking lot for an hour after being rousted out of bed before the sun comes up. That's just wrong, and not up to Disney standards.
My News Year's resolution: Don't return to WDW after the cruise. In that one night after our cruise, we blew DVC points, bought park hoppers, and otherwise spent at least the equivalent of $1,400. Disney, because of your bus system, we'll be heading straight to the airport instead. I'm a veteran of 7 Disney cruises, and your insane bus system just convinced me to not go to the parks afterward. It reminded me of the cattle-herding that we suffered under Norwegian Cruise Lines.