There is nothing unusual or special  at all with this blockage or with this road. Routing with barrier-ways works beautifully with routing-servers on osm.org, thats why people use barrier-ways. Just test it and see for yourself and don't spread fakes (or are you refering to your own routing-server - in this case "tagging for the renderer" applies). 
I restored the barrier-way and changed the road to service (as it is blocked and a dead-end). 