I think this should be at least partially reverted. The bike lanes here are on the street and are better represented by tags on the street's Way. In notes on OSM Wiki https://wiki.openstreetmap.org/wiki/Bicycle#Cycle_features , there is a discussion of cycle tracks being sometimes mapped as separate Ways. In general practice in the Seattle area sometimes paths with some separation are given separate Ways -- in my opinion, far too many. These bike lanes aren't anywhere close to that line. They're part of the street and they should be represented by tags on that street's Way.