It may be hyperbolic, but it is drawing attention to the fact that a cash-strapped system has spent money trying to (and failing to) fix something that was not broken.
Everyone that's been to a shopping mall knows how consistently broken information touch-screens are. Suggesting they put interactive maps in a subway is just silly.
The digital maps are to show realtime service information, train-times, etc. It is an improvement, and if you want a printed map, you can just ask for one at the booth.
The whole "my map isn't in 4k" argument is whiny, at best.