Bowl games and scheduled games and have lost to B10 teams - Georgia to MSU and many more - So it's not like the Big10 hasn't matched up before. OSU maybe the most dominant school but then we could say that about USC in the PAC12 or FSU in the ACC. Clemson was an also ran for decades now they're doing well.
I don't disagree the SEC right now is the better conference 1 through 4 compared with Big10 but this too will change. At one time the BIG 10 was a dominant power conference. There too was a time not so long ago, Independents like Penn St. ND were tops.
The North have talent too.