I still don't really get how this works, and I have a PhD in education. I get the idea, and can totally see K-12 having a skew since that can be a few steps removed from primary sources, but any school conducting research will ultimately end up "liberal" because, on average, objective approaches point towards approaches adapted by liberals and leftists (plus genuine discourse usually leads to left out center conclusions because logic points there.).
My dept was full of people with very conservative beliefs (and even a bit racist) but their work still pointed to shit like basic income and socialist reforms being the solution to most education gaps. Advisor proudly displaying The Bell Curve on his shelf while simultaneously getting millions for experiments with giving families thousands of dollars of no strings attached money because evidence simply suggested it's a very effective solution!
So what is DeSantis doing to make it more conservative? Just focus more on majors without methodology? Avoid research funding and focus on instruction only? Add a whites only application pool? It's not like you can get published in a serious journal without an objective methodology. It's about as nonsensical as renaming the Gulf of Mexico, you have to get a global consensus for it to stick.