If speaking of one-off efforts, Enyeart would certainly rate a pre-race vote for eventual winner. But most gold medal contenders at 800 meters in a championship--especially so back then--were athletes with an 800-1500 range, not 400-800 as was Enyeart.
A certain amount of strength was needed to make it through the rounds relatively easily and be recovered/sharp for the final.
A talented 400-800 type might pull it off at the NCAA or AAU/TAC/USATF/Partridge-in-a-Pear-Tree championships, but much tougher at The Games.
With the exception of Juantorena--the ultimate exception to any middle-distance rule (including body-type!)--think of the others who have won medals: Van Damme, Wolhuter, Wottle, Coe, Ovett, Cruz, etc.
Enyeart was an altitude boy, at least in college; an added strength bonus other 400-800 range types lacked.
Glad you mentioned Enyeart. I liked watching him race. His injury must have been severe (foot?).