It costs basically nothing, allows libs--particularly white ones--to pat themselves on the back for being part of Team Good™, and injects a small amount of positive coverage of the administration into the news cycle. Plus it's an entirely irrelevant issue to current day politics to the point that not even many right-wingers would particularly disagree with it.

Obviously it's deeply insufficient in terms of addressing any of the actual harms done, but you have to dive fairly deep to find any media coverage of that, and even then it consists pretty much solely of quoting Native American groups saying as much.