Any design will have consequences, and is thus relevant. But changing it has as much of a consequence as not changing it. Example: Airbus design has "stick" typ

Any design will have consequences, and is thus relevant. But changing it has as much of a consequence as not changing it. Example: Airbus design has "stick" type yokes that are not linked together, and are out of the field of view. If one pilot is using improper inputs, the other pilot won't know. Boeing planes have mechanically connected yokes, both pilots are aware of flight control inputs. Is one a better design than the other? I suggest it's the wrong question, the right question is, what are the consequences of the design on cockpit communication, management, and training and can we meet the ensuing requirements?