alt Hacker NewsThat seems reasonable. The kiosk is still there to pay with cards or cash directly, but the app/website lets you skip that, avoid printing a slip, maybe buy a pass or something.
The risk is mainly that down the road someone looks at the usage numbers and goes hmm, well the kiosk is only getting used 5% of the time, let's just discontinue supporting it.
The other risk is that they make it cheaper via the app/website, maybe by offering a pass or something. Then that's effectively discrimination against people who don't have a big tech phone.