Well, that is true. Of course the Steelers had a streak where they made they playoffs just once in 39 years, while the Colts, who were around for only about 1/2 of those 39 years, went to the NFL Championship game five times during the same period. You won't lose many playoff games if you never make the playoffs.
And do not give any BS about Indy being an expansion franchise that dates back only 30 years.
What was the line in Superbowl III? 18 points? Although I doubt hat was a choke. More likely some of Joe Willies Bachelors III clients bought themselves a few Colts.