text: Mapzen seems to resolve the issue, but not the routing engine used by my reference application ("Maps with Me" aka Maps.Me; updated) which avoid the track after the intersection with the highway A9 "Autostrada Lainate-Como-Chiasso" and reroute me down to the A8 near Lainate avoiding the A36.
  
  I suppose there could be some non trivial issue with the turn restriction in the interchange between A9 and A36 (East to this note).