From memory (I don't have it with me at the mo), there are about 3 different ways to wear the scarf. I would be surprised if the local management have changed the policy as you suggest but I guess it could happen.
Remember, specific airports, and even customers, can have different requirements on uniform standards. Provided it's consistent I don't really understand how one way or another could better suit your management as you suggest.
I'll see if I can find a copy tomorrow. Have you spoken to you manager about this and raised your concerns - although from what you say they are questions rather than concerns?