Texas has a sprint tradition second to none, high school and college combined. The uniformly warm weather provided by Southeast Conference schools has likely contributed (along with proud traditions and alot of stellar coaching by giants like John McDonnell at Arkansas and Pat Henry at LSU) to their overall track & field success over the last few decades.
The real news -and concern- is the demise of the once-mighty Pac-12 (and its many earlier iterations including the Pacific Coast Conference, Pac-8, and Pac-10). These conference schools (led especially by Southern Cal) dominated college men's track & field (alas, women didn't have college programs to compete in until the 1980s) for some 60 years (with Big-10 & other Midwest programs providing primary competition) up until the 1980s, when Arkansas emerged as a dominant force.
Where the Pac-12 schools really shined, however, were in Olympic sports in general. If you look at the cumulative all-time list of U.S. colleges & universities that have had the most Olympic medalists over time, the juggernaut Pac-12 schools (USC, Stanford, UCLA, and Cal-Berkeley) completely dominate; no other schools are close (UT Austin is a distant 5th; the only Texas university in the top 20: See-
List of American universities with Olympic medalist students and alumni - Wikipedia). Another three former Pac-12 schools (U. of Washington, Arizona, and Arizona State) also rank in the top-20. Will the former Pac-12 conference schools continue their stellar Olympic traditions amidst these rapidly changing times, where ridiculous conference re-alignments implemented in the chase for college football dollars may make the burden of travel not worth it for many West Coast athletes? Where evolving NIL and emerging pay-before-play arrangements alter what it means in terms of program commitments? We'll see.