Have none of the folks promoting DTW ever arrived in one concourse and needed to depart from the other?
The tram is great only if you never leave A, otherwise it is only effective if your gate is at one end of A.
As soon as you have to get between Concourses through the psychedelic tunnel DTW is slowwwww.
Hubs are all about getting from gate to gate, concourse to concourse. Sorry, DTW is not great UNLESS you never leave A.