To make the comparison real, pick Alabamas schedule.
They don't play those 4 teams (onviously). Does anyone play those 4 teams in a year?
If Auburn made it as SECCG winner; they would have had to go through LSU, Alabama, and Georgia in the regular season with possibly playing Florida in the SECCG playoff or in the regular season.
If South Carolina made it as the SECCG winner; they would have had to go through Georgia, Florida, Texas A&M, and either LSU or Alabama depending on who was on top.
You know the drill; Tennessee? Georgia, Florida, Alabama, and possibly Alabama again if not LSU in the SECCG.
So short answer; yes some of those teams do have to play 4 or more traditional powerhouses to make it to the playoffs.
Ignoring big regular season nonconference games and any medicore teams that still went on to beat other top conference teams in their non-SEC games.
Alabama in 2020; Had to beat a 9-1 Texas A&M, 8-2 Georgia, 8-4 Florida
2019; 8-5 Texas A&M, 8-5 Tennessee, Lost to 15-0 LSU, Lost to 9-4 Auburn
2018; Not going to even do this one, Except for Georgia was the worst the SEC had done in almost 2 decades
2017; 9-4 LSU, Lost 10-4 Auburn, (Auburn beat Georgia in regular season but lost in SECCG)
2016; 9-4 Tennessee, 8-4 LSU, 8-5 Auburn, 9-4 Florida
2015; Lost to 10-3 Mississippi, 10-3 Georgia, 8-5 Texas A&M, 9-4 Tennessee, 9-3 LSU, 9-4 MSU, 10-4 Florida
Just like the phrase 'Any Given Sunday' is used for the NFL; the same is for the SEC. If I start going back further than this; then I'll have to start bringing in how Clempson was getting dominated by South Carolina and even losing games to Kentucky.
Part of the SEC gauntlet is that there's hardly any free games. Home crowds make a difference and most every team goes in fighting regardless of who they are playing.
South Carolina and Georgia have an interesting relationship the last ~20 years as there's been plenty of time where the better team didn't actually win. There's times South Carolina was actually better than Georgia and Jawja pulled it off. Same where Georgia was a much better team and South Carolina found the win.
That type of play happens almost in every game played in the SEC. Watching Vandys Zach Cunningham play against other SEC East team was fun to watch. Even Vandy has 19 active players in the NFL right now.