Had the Gophers lost to Indiana, their RPI would be around 37 today. Some say bubble in that case? Still a fairly strong RPI, right?
All gets down to what the committee wants to consider. Illinois and Minnesota have the two worst adjusted winning percentages in the top 50 RPI.
Rodney has had a couple of solid performances recently (PSU, at Purdue), but... could the committee say, "well, he isn't the same as he was pre-injury.. so this team is different right now"? In this particular example I'd say no, but the committee can get into those types of discussions.. "yeah, but Memphis sat Joe Jackson and Johnson was in his first game back"... "yeah, but SDSU was without Nate Wolters"... "sure, but they're 5-6 after the loss to Illinois against Big Ten opponents without winning records"... "some experience on the team, but their roster has a total of 2 minutes of NCAA tournament experience"...
There are a bunch of humans making decisions, trying to determine "the best teams".