commute what? I'm not sure which part of the suggested route disturbs you.
I meant that 173rd doesn't have bike lanes. Walker has them continuously east from 173rd, all the way to just east of Cedar Hills. That's why I don't like to ride on Walker west of 173rd. I'd sooner cut north there, then west on Cornell for a block, then onto Evergreen.
I have taken to riding the sidewalk up the Park Way hill. Nicer. I usually have it all to myself.