I don't think that was relevant to which conferences made the playoffs last year. The only team from the B10/P12 who even sniffed the playoff was OSU, and their blowout loss to Purdue is what did them in.
Big 10 Bowl record was solid other than Purdue which should in no way have been in a game against Auburn and Michigan's bend over and grab ankles. Seven solid games out of nine. That's a bit better than FCS.