It is not a Mustang because the Mustang is a pony car and it literally has specific and objective criteria. So it is not a Mustang. It is you that insist on making an alternate reality. It is you that is trying to force something because you say so. So yeah that is rather pretentious, arrogant...
The Mustang is more than just performance... I don't like the Mustang badging going on other vehicles. Its my opinion and its not going to change. So be snarky all you wish... Guess it makes ya feel better about yourself.