It's not Sound Transit's fault. The cities won't let them. Kirkland wants them to build out Buses and threatens to veto any light rail project. Residents by the CKC want to "save the trail" (aka we're selfish jerks that bought a property by a railway line, but don't want noise of trains)

http://seattletransitblog.com/2016/03/12/kirkland-st-struggl...