If we are going to try to parse Stowell's record to try to make it look better, and criticize Jim Les' teams for playing in the CBI and CIT, then it's only fair to point out some other things, too that "padded the record" of Joe Stowell.
At least the wins in the CBI and CIT were against quality Division I teams.
Stowell's teams played some abysmally weak competetion early in their seasons that guaranteed several extra easy wins.
They did not play "exhibition games" back then, so these were actual scheduled games that counted-
St. Ambrose, Samford, and Tennessee-Martin (in '73-'74)
Illinois Wesleyan, Steubenville, and Wheaton ('74-'75)
Fort Lewis and Samford ('75-'76)
Quincy and Illinois Tech ('76-'77)
Illinois Wesleyan, Quincy, and Cal-Hayward ('77-'78 ).
Those are just the most obvious ones. There were also games most years against Westren Illinois, Loyola, and other very low level teams on the schedule.
And the other factor I would argue is that the Missouri Valley simply was not as good a conference top-to-bottom then as it has been the last decade. The MVC always had 2 or 3 very good teams, but they had some bottom dwellers than that guaranteed a couple easy conference wins every year.
Nobody I know has ever suggested Joe Stowell wasn't a very good coach, and I don't see anyone here saying that. He always got his players to play hard, and overachieve. But his teams usually played with talent that might politely be called second tier. Jim Les has been criticized endlessly here for never winning a conference or tournament title. What did Joe Stowell ever win?
And if Jim Les ever scheduled a home game against Steubenville or Illinois Tech (not just an exhibition) just to pad his win total, the fans would revolt.