There are times in retrospect I wish they did, especially when I see Miami listed as the 1983 National Champion. I still resent the hell out of the fact that we had to play a road game. But I'm glad they did go for 2; in that era without overtime it made more sense, and the decision is what most people remember about the game.
I think my bigger issue is with the play call rather than the decision. When you rush for 500 yards a game, don't put your whole season on a pass play. For one, Miami said later that they scouted it. I watched one of the other games from that year on Youtube recently (Kansas maybe?) and Nebraska went for a 2 point PAT at one point and ran the exact same play as the failed 2 pointer in the Orange Bowl - successful in this case, but from that point on, it was on film.