To me the OP only described the salesman demeanor.
In no way he bashed a handicapped person .
Stop the attacks on him for only a discussion description of a conversation.
The 2.3 under the hood is very open and Accessible . The 2.7 under there is almost a nitemare to get to something for a repair. Later down the road the 2.3 might be better for repairs . Huge difference.
I would be cussing the devil try to do a minor repair on the 2.7 motor because of the room space.
The 2.3 has a ton of empty bay space on both sides . So after years of use in time small repairs will be needed . I tend to keep my vehicles many Years .