The problem with scheduling is the bottom half SEC teams who generally play no one. There has never been a problem with how to the top SEC teams... besides the Florida Gators... make their schedules. And with Florida, their excuse is that they have a standing game with FSU.
Bama, Georgia, LSU, etc. often schedule a very big OOC game. It's Mississippi State playing Kansas State and 3 cream puffs that is a problem... in the last 5 years their OOC slate has been, KSU, BYU x2 and then 17 cupcakes. Their OOC schedule in 2014 was Southern Miss, UAB, South Alabama, and Tennessee-Martin... and they debuted as #1 in the CFP rankings. When you have no data points outside of your own conference, it is impossible to know how good you actually are.
Don't confuse a few big OOC games with being the norm.
UGA does have a decent rivalry in GT - we can all appreciate the fun of playing an option team and the challenges therein. Their LSU non-division rivalry is one of the tougher draws as well. I will also give them credit for hitting the road in these OOC games, not just neutral sites.
2019 Murray State, Arkansas State, ND, GT (@ Vandy in the opener and open date after ND, hmmm)
UGA 2018 OOC - Austin Peay, Mid Tenn, Umass warm up for GT before the CCG.
2017 App State, ND, Samford (they sandwiched us b/w two cupcakes), GT
2016 UNC, Nicholls, UL, GT (L)
2015 ULM, Southern, GA Southern, GT - how bold!
2014 Clemson, Troy, Charleston Southern, GT(L) (probably scheduled series before Clemson was good)
2013 @Clemson (L), North Texas, App State, GT
2012 Buffalo, Florida Atlantic, GA Southern, GT
2011 Boise State (L), Coastal Carolina, NM State, GT
2010 UL, Colorado (L), Idaho State, GT (this 6-6 team lost to UCF in a bowl to finish 6-7, imagine our despair if we did the same!)
2009 OKST (L), ASU, Tenn Tech, GT
2008 GA Southern, Central Michigan, ASU, GT (L) - part of me wants to bold this but seriously it's ASU
So about half the time booking an early "big" match-up is enough to make intelligent people like Lax give them the benefit of the doubt. By the same token, we should schedule USC and Stanford every other year with maybe Chicago State coming to ND in the off years. Everyone would just assume we played a tough game because it happens often enough for lazy people to make assumptions.
6 of 12 have OOC worth mentioning. But all people think is "remember the Clemson series" or "wow that ND series was great" - nevermind staying south of the Mason Dixon line for 50 years.