Auburn has had plenty of room on their roster for some time. At the end of the Chizik era I think they were playing with around 70 scholarship players due to all the transfers, arrests, and non-qualifiers.
You are not taking into account several factors: mainly that B10 and SEC schools absolutely have different styles in recruiting (insert predictable "bag man" joke here). Many schools like Ole Miss, South Carolina seem to rely heavily on JuCo transfers. Over 4 years, you can sign twice as many JuCo guys as you can traditional 4-year players (and yes, over the last few years Auburn has used a lot of them as well due in part to their roster being so low). If that guy signed originally with the same team, he ends up only playing 2 years, but counts twice in a LOI survey. There is also the greater chance that an SEC team will take a chance on a guy that may not (will not) qualify. When you look at these differences, most SEC schools can and do sign many more players than a typical B10 school - without forcing anyone off the roster.
For the record: you may have misunderstood me - I perfectly willing to grant OSU the benefit of the doubt: crap happens and feelings get hurt from time to time (not necessarily due to anything intentional). Heck, I'm a Bama fan - we've been dealing with these accusations for years. Welcome to the club, the bitching is annoying, but the bling is kinda nice.