Your assumptions are wrong - as is your assertion that I have not heard either of Duo or been interested in aviation for more than 5 minutes...perhaps you have little substantive retort to my points to add? Might I mention Eastern perhaps as a successful independent that - while not with a history as a BA franchisee - effectively operates on many former BA routes with former BA aircraft and successfully so.
Your point is irrelevant anyway, since Duo did not fail on having poor routes or levels of booking, but were unable to find funding in time to cover costs to creditors.
My points are loaded to impress that the whole cost base of BA is excessive - I stress that it is not solely restricted to pilots - scope does not however help any company.