Will Biman ever improve?

I recently visited Bangladesh from London for business purpose. I had decided never to travel by the national airline again after receiving very poor service nearly 30 years ago. As many years have gone by, I decided to travel by Biman in the hope that perhaps things have changed.
On the flight from London to Sylhet, we had a stewardess who behaved like an uneducated rustic person. During the same flight, foods, headsets and other items were dropped on the floor because of the sheer carelessness of the flight staff. There was a tall western passenger who asked for one of the seats with extra legroom (near the exit door) but was denied, as those seats were occupied by the friends or relatives of the staff. Will the service of Bangladesh Biman ever improve?
Monohor Raja
London, UK