He is not close to right. Davidson got an at large with a kenpom 219 OOC SOS last year (200 Warren Nolan team sheet). Wyoming's was 186 kenpom (158 warren nolan team sheet). Boise St was 195 OOC, and Colorado St 144. San Fran lost 9 games pre tourney and was at 125 OOC schedule, and San Diego St lost 8 games and was at 84 OOC schedule. So, as a non power team, you can lose more than 7 games and have a higher, and sometimes much higher OOC SOS than 50. I used Warren Nolan's SOS because the kenpom numbers might include post season. I know Warren Nolan's do not. We were 94/96 with these 2 sources.
What we don't want to do is schedule like Davidson did last year. They finished at 200 OOC SOS, with 5 Q4 games, and 7 games against teams ranked 180 or higher. By comparison, we played 3 teams higher than 160. They only played 3 top 100 teams, we played 6. They needed to go 9-2 OOC and 15-3 IC just to get a 10 seed. I think had they not won the regular season title, they might not have gotten in. Even though it is not an automatic invite, the regular season A-10 title certainly helps you, especially at 15-3. But, I know I wouldn't want to go 15-3 IC and win the regular season title and still have to sweat a little on selection Sunday.