Adding in, again, a piece from the past, and then asking a question from that: In 2006 the City Council made a decision to change the routing of the rail to take the train through the airport than through Salt Lake. The newspaper of record at the time wrote this as part of the reasoning for this decision:

While adding $200 million to the $3.9 billion construction, the airport route would average an estimated 95,000 passengers a day, while the Salt Lake route would carry 88,000. The airport route would be useful to employees commuting to the airport and Pearl Harbor Naval Base

“;The higher cost of the airport alternative would be offset by the higher ridership and user benefits for that alternative,”; the environmental statement says. 

So my question, even if you adjust the numbers because your cutting out half the line, wouldn't the system still be viable for the time being at least from those employees that work at the airport and JBPHH?