text: mapzen gets it right too, there is no mistake on the map just some routers don't understand the tag. 
  GraphHopper has a ticket https://github.com/graphhopper/graphhopper/issues/280
  
  At the risk of tagging for the renderer (or router in this case)  we could add oneway:bicycle=no but first ask komoot.de. I have never heard of that one.