Note the reasons for it though. "introduces vertical transfers", "reduced intuitive wayfinding", "impacts natural surveillance".
First of all, what the heck is "natural surveillance"? Second of all, do you honestly think that people would rather have their commute be 10 minutes longer to avoid a set of stairs? what?
The weighing of the pros and cons in the City's analysis was rigged to make the at grade alignment the "preferred option".
Elevated had double the ridership, half the travel time, and was generally a much more effective transit system. The City was cheaping out because they didn't want to foot the bill for it.