Yep the SEC and the Pac 12 played more games against top 25 teams
on the road and at home than anyone else. Ditto
more roadgames against the top 50. They call it SOS.
Look at the Nitty Gritty for the top 8 seeds. Look at the games against the top 25 and top 50 see who plays the most top teams and what conference they are from. Look at what two school in the WCWS played the fewest top opponents. Answer OU (9/23) and FSU (10/12). Florida (33/4) and Georgia 23/5) played 68% and 23% more top opponents. Look at what teams played the fewest true road games. It was OU (13) although ASU and Georgia made that list too. Florida played 46% more road games than the Sooners.
All the SEC conference road and home games count toward determining who plays the best competition and earns the top seeds for the season just as do their non-conference games. As should be the highest ranked teams always get the home field for the tournament because they earned it with their performance.
It is for certain Boston University did not earn the right to host a regional because they beat OU in the regular season. Those that hosted regionals and super-regionals earned that right by playing a 50 plus game schedule. That includes the SEC where about half of their games are against top quality conference competition with half those games on the road.
I.e Arkansas played 3 at home against #24 Missouri, #40 Ole Miss, #20 MSU and #16 Alabama but the also went on the road for 3 against #11 LSU, #7 Georgia, #9 South Carolina and #18 Auburn. That is a slightly tougher schedule than going on the road to play 3 against #14 Baylor and 1 against #27 pukesville while hosting #36 Texas, #107 Kansas, #66 Tech, #71 ISU and 2 with #27 pukesville.
The hogs played 12 road games and 9 home games against top 25 teams in the SEC. OU played 13 road games total and only 9 against top 25 teams. And you want to complain about SEC scheduling where every SEC team played twice as many or more top 25 teams than did the Sooners. Ha ha!
https://extra.ncaa.org/solutions/rpi/Stats Library/SB Nitty Gritty Through 5-13-2018.pdf