The guy starts out, "And as a young engineer with a masters degree in transportation engineering from Purdue University and a bachelors degree in civil engineering from the University of Michigan, . . ." That alone gives him a credibility problem.
Maybe he will be thinking differently when he can write something like "as an engineer with years of experience in the design and costruction of rail transportion project, I have see the trasition from "it costs too much, it takes too long to build and no one will ever ride it" to "how did we ever manage without it?" take place more than once, and in fact with every rail transportation project I have been part of, and see no reason why it will not continue to happen on any well thought out rail transportation project.'
In other words, he has yet to make the transition from an academic perspective that has been fed to him to a perspective based on reality.
Oh yeah, let us not forget: The non-users also benefit as there is less traffic to contend with when they choose to drive instead of taking the trains.