"There was a very vocal crowd cautioning Texas about taking on that contract for a guy with a body type like PF. One thing to live a normal life with that body weight/type, another to perform as a high level professional athlete."
Yeah but... the body type for PF had nothing to do with why he had to retire.
Yes, it's possible he would have started to drop the next season even if didn't have the neck thing, and IF that happened, the body is likely to have played a role, but it's not as simple as just pointing to a fat guy and stating "everything that goes wrong with you is cuz you're fat and stuff"