The 8 game vs. 9 game part is legit, but the SEC has always tried to have as many quality matchups as possible with the power teams unlike the B1G which seems to try to intentionally avoid them.
For example in the old division setup, they divided the 6 historical powers (Alabama, Auburn, LSU in the West / Florida, Georgia, and Tennessee in the East) with 3 in each division + a permanent rivalry with one of the other power teams (Alabama-Tennessee, Auburn-Georgia and LSU-Florida). So, at a minimum, all of the historical six powers were playing two others in their division + another from the other division.
Even now without divisions, they prefer these teams to play each other. Alabama, for example has played @ Georgia, Tennessee, LSU and @ Auburn this year + Oklahoma from the new teams.
It's becoming harder and harder with the influx of new teams, but they actually do try to match up as many of the big teams to play each other as possible especially the old historical six who all enjoy playing each other.