I think there's some truth to this. Chow's campaign knew that to win they needed to get non-wealthy suburban voters on side - and they did, strongly. Downtown progressives were going to be on board no matter what.
It's very possible I saw Chow's campaign as flawed because it wasn't pandering to me. And why would it? They have to know people like me (older lefties who reliably vote) are in the bag.