Still couldn't find it there, but the data was enough to show what I needed to show. Ranking at the time you play them is a pretty good indicator. If anyone wants to complain about scheduling then you would probably be more interested in looking at their average ranking in the 1-3 years prior to the game being scheduled. I mean, why should you get credit for scheduling Mississippi State back when they sucked just because they got better afterward? Or why should Bama get credit for Conference foes anyway since they don't control that? And of course post season foes shouldn't count since you don't control them either.
Looking at just regular season, you still have Bama playing top 20 opponents out of conference to start the season 3 out of 4 years. Ohio State had two OOC games against ranked opponent (#14 Oklahoma in 2016 and again when they were #5 in 2017 but neither were openers). Clemson had #5 UGA in 2014, #6 Notre Dame in 2015, and #13 Auburn in 2017 (only UGA was an opener). UGA had the #16 Clemson game as an opener in 2014 and also #16 GA Tech that same year, #22 NC in 2016 as an opener, and #24 Notre Dame as 2nd game in 2017.