For non-automatic qualifiers it is. From a Baseball America article dated 5/16/24:
"Florida and Mississippi have excellent tournament cases due to their elite strength of schedule (Florida is No. 2, Ole Miss is No. 1), RPIs (Florida is 30, Ole Miss is 24) and number of quadrant 1 wins (Florida has 11, Ole Miss has 12; only Kentucky and Tennessee have more than 12 nationally). Unfortunately for the Gators and Rebels, they are both flirting with .500 overall records (Ole Miss is 27-25 and Florida is 26-25) and a series loss this weekend would mean they must reach the SEC Tournament semifinals to have a winning overall record, a prerequisite for at-large teams. Both teams are playing less than 56 regular-season games (Florida has 54, Ole Miss 55), a decision that could come back to haunt them. I would suggest that if either team gets bounced from Hoover early, it would be worth exploring adding a non-conference game on the fly, though the logistics of such a play might be next to impossible.