Whoever decided to close his access to the API should be fired.
Discussion upthread is about commuters being pushed onto the tracks, which sounds like a good reason not to display data that isn't 100% certain.
[0] https://en.m.wikipedia.org/wiki/Wikipedia:Chesterton's fence
Good luck with that. I'd be amazed if you got a response.
(Also, on reflection, "Chesterton's Fence" is an unnecessarily complicated and overly verbose way of saying: "The MTA probably has a reason for the change.")