Yup, it is genuinely convenient that Waymo doesn't rely on an unpopular payroll tax for funding while the bus system does, and also doesn't have human drivers who need to be paid subject to the laws of the city of Portland. But it doesn't actually matter all that much what is going on municipally in Portland at the moment - Waymo (or ideally, a wide variety of competing robotaxi services) should exist everywhere in the country and be as widely available as cars and roads themselves. And eventually this will happen; the concept that Waymo entering a new local market is a newsworthy event is a temporary state of affairs.