It’s a start. Zer0 is for 1800s technology railroads anyway.
Obama is a Luddite, for sure.
The tin foil side of me says this was intentionally overlooked to put federal money in the hands of the flailing airline industry. At least some airlines raised their prices by the same amount as the psuedo-repealed tax. One argument is that it is a mini-bailout, without a single politician having to take much heat for the decision.