I personally think the current routing of Route 32 does not make any sense. Though it does make a good connection between SPU, Fremont, Woodlawn, and U District, it serves the already frequent 15th Ave W corridor, which barely has any businesses or homes along it.
I think a new routing is needed for Route 32 between SPU and Downtown Seattle. (Yes, I know it currently does not go to downtown.) I propose that between SPU and Downtown, Route 32 runs like Route 29. This will also provide a connection to the West Queen Anne corridor. Such a routing will allow Metro to merge routes 2 and 13 into a single route, with Route 32 taking over the 6th Ave W corridor.
Though I am heavily against the through-route system, I do understand that Metro uses it to save money. Route 32 could possibly be through-routed with another 30-minute frequency route, such as Route 125.