It's not anything I would ever consider using but I can see some appeal to someone not wanting to wait for the regular boat or monorail. I'm kinda surprised they didn't go full blown ostentatious money grab with the water taxi having hot tubs, complimentary foot massages, free drinks and apps, with characters driving the boats, all for a modest upgrade of about $10K per one way trip..
You forgot Bibbidi Bobbidi Boatique