Good point, but in the long term, a successful large scale transit project can and will sway opinions and cause other transit projects to crop up nearby. In the mind of a car exec it's probably best to nip it in the bud in case more people get a taste of what car-free ground transportation can do and start getting ideas about transit expansions in their cities, and it's not like he's shy about his vehemently anti-transit stance in general either.