Here is what I focused on from OP's intro

Four teams control their own destiny in the SEC

Three of those teams would make the NCAA playoffs if they win out

Technically the NCAA does not have a playoff in football but does so in basketball, but since he said LSU it inferred LSU football.

So, correctly or incorrectly, I was viewing his OP as two part

#1 Winning the SEC (but he did not specifically include the CCG) after 13 games

#2 SEC in the CFP

Viewing the SEC rep it should be pretty obvious that win and you are in, even if you have 2 losses now. While we complain the SEC is still the best conference top to bottom but that does not settle well (especially with those yankees north of the Ohio Ocean).

To recap last bowl season:
SEC = 13 bowls and .462 record
B1G = 10 bowls and .300 record

Clearly .462 > .300 but the bigger point is it was the non B1G schools lowering the SEC's numbers.

Alabama did not get to beat Ohio State, as Clemson got that game
Cotton Bowl had a B1G vs a MACrifice team
In fact it seems you usually have 4 bowls with B1G vs SEC yet I think we had just 2

Tennessee 38 beat Nebraska 24
Florida 30 beat Iowa 03

That means the SEC was 2-0 head to head vs the B1G yet still they act like the B1G was better last year and kept trying to squeeze 2 teams into the 4 team CFP. I understand this because the B1G footprint has way more eyeballs which makes advertisers happy which makes broadcasters happy to put them in wether they deserve it or not.

Copule this with the B1G arrogance to think they are better than they are even tho modern history has shown only team in 14 has been able to win it, and even then they needed help from the refs to make it happen (Miami vs Ohio State game stands out). Conferences (current members) breaks down this way since 1998.

(5) = SEC via Alabama, Florida, LSU, Auburn, and Tennessee
(3) = ACC via Florida State, Miami, and Clemson
(2) = B12 via Texas and Oklahoma
(1) = B1G via Ohio State
(0) = PAC via Southern California (vacated)

Pretty sure this makes the SEC + ACC + B12 look like where CFB is really played while the money maker in the old days (Rose Bowl) has diddly and squat. yet here we are in another season being told how great the B1G is because that is where the money is.

Clearly if Alabama and Georgia win out the regular season, both winner and loser of the SEC CCG should be 2 of the 4 CFP teams but it will not happen. I think the committee (heavily stacked with B1G and PAC voters) would love to get 2 B1G teams in and 0 SEC teams in. It is what it is but if any 0, 1, or 2 loss team from the SEC wins the SEC CCG they should get in in my opinion.

I would love it if UK ran the table (as they are not even in the Top 25 right now) just to watch the committee lose their mind in how to keep them out of the CFP so they can get 2 B1G teams in. In the end it is about who controls the money and where as to who the committee "fits" into the narrative. Just look at the B12 getting bumped out for any team not named Oklahoma or Texas.

I hope I am wrong on all this, but history so far has proven me right.