It will make no difference - while some pax may be happy not to be flying on BA
223, in reality, it may add to the risk. BA
223, for some reason, was the subject of some type of terrorist threat on several days in the past couple of months........but atleast the authorities knew which flight was being targeted and could take some action. A change of flight number may ADD to the confusion and not allow a clear reference.......who knows?
The good news is that nothing happened, expect a few inconvenieced passengers.