Freak on a Leash,
The aircraft type has no bearing whatsoever on the fact that this crew, for whatever reason, took off from a taxiway. No aircraft in the world issues "instructions" to pilots on when to takeoff. I cannot speak for other types, but Airbuses will take off in any direction you like, wherever you like! Just advance thrust levers with the right config and off it will go.
Following instructions blindly has nothing to do with it. Suggest you read the investigation findings before casting aspersions.....
