It's very conservative - just along certain axes that are especially locally relevant. For instance, they've opposed both our 2008 and 2016 mass transit ballot measures (both of which passed with strong support). They were supportive, until we replaced the primary owner's express onramp on Interstate 90 with a train.
Seattle Times is left leaning. Just because your pet measure of transit was opposed doesn’t make it otherwise. Calling it conservative is simply unmoored from reality. It’s also a display of what Seattle politics are like and why it has declined so much on so many facets in a short 20 years. The rampant progressive extremism is the root cause of the issues affecting Seattle. There is no balance or practical governance.