For a long time he was massively over as a heel until he was put lower and lower down the card. It seems like he could have been turned face and used in a way that wasn't terrible even with his incredibly limited mobility.
I guess they would have ended up releasing him no matter what since he wasn't able (willing?) to lose the weight. Seems like kind of a shame for his WWF career to end like it did considering how good he was as a heel in 1993.