The district where my kids attend have suggested this on a few occasions. Frequently advanced math is the target. The district has hired a consultant that is charged with professional development for educators in the district. Among other things, the consultant makes claims that tracking is "... a racialized system of exclusion.” and compares it to Apartheid on multiple occasions. The rationale is explicit: "The biggest problem with tracking–by a million miles — is the equity issue." In my opinion combatting inequity in this way, by eliminating a resource that students need to succeed, is an example of “leveling down” or "Harrison Bergeroning" the situation if you will.