unfair and almost revisionist history to compare both eras.
first: For the most part, that 1992 O-line was mostly the same O-line that took away a few years from Troy's career to begin with. Tui, Nate, Big E, Step, Big Goog( Kevin Gogan ), were all around when Troy was getting his brains beat out of his head. They eventually matured and became dominant, but falling for the John Madden made up folklore of the " incredibly dominating offensive line " is ignoring the complete and true history.
Yes, they eventually became outstanding players as the triplets themselves rose to their level of greatness, but let's not assign more credit to them than they deserved.
second: In those years, the Cowboys ran the ball. They ran it again, then they ran it some more. The NFL, with the exception of a couple of teams, mainly the Bills ( somewhat ), Oilers ( run n shoot ), and the Dullphins, also ran the football. The Lions ( run-shoot ) to a certain extent too, but they had this guy named Barry Sanders that kept them in check. 300 yards games for QBs were NOT the norm around the league. 400 yards were practically unheard of, nevermind 500 yards game. On the other hand there were usually 12, 14, 16 RBs who rushed for over 1,000 yards and/or carried the ball 300 times or so.
In other words, it was a rushing league more than a passing league and defenses were built to counter that concept, unlike today.
third: the passing game is much more sophisticated today than it was back then. 3 and 4 receivers sets were used on rare occasions, usually in 2 minute drills OR when teams fell behind by a wide margin. Today, those are often 2nd and 3rd down formations, and even 1st downs formation at times.
Blitzing packages to counter those formations were considered, for the most part, risky and " exotic " because they weren't used too much. Today they've become almost a routine play on defensives game planning. That's something they rarely had to deal with in those days, but do today.
Would those guys have fared as well today as they did back then ? I don't know. There is no Emmitt Smith carrying the ball 25 times a game today and we can only speculate how good they would have been if Troy had to throw the ball 35 times per game.