If Comcast's donations help Murray defeat McGinn, it will send a powerful message to mayors in other American cities considering initiatives to increase broadband competition.
This article was written by someone who didn't do their homework.
There are a lot of reasons McGinn is probably going to be voted out. I doubt anyone's even going to connect his defeat with his lip-service regarding city-wide fiber.
McGinn has consistently pissed off both the business community in Seattle and large chunks of its citizenry. It all started before he was mayor - a lot of people were leery he was too much of an ideologue. As candidates do, he claimed he'd be pragmatic - promising he wouldn't let his personal opposition to the Highway 99 tunnel affect his mayoral decisions regarding the voter-approved project. Of course he got into office and immediately did everything he could to derail the project (but failed miserably - in addition to being an ideologue, the dude is not an effective leader). Anyway, it's gone downhill from there...