For context, the author is one of the more influential members of the Federalist Society, the right-wing judicial takeover group. If you’ve lost him, you’ve lost a huge chunk of people who have historically funded the Republican party patronage machine.
There aren’t a lot of conservative judges like this guy left. He testified in front of the January 6 Committee, so Trump lost him a while ago, but his testimony and subsequent public interviews are master classes in what it means to put the country before partisanship. I strongly disagree with his judicial philosophy and his conservatism, and find a lot of his views to be antiquated and part of the problem, but he stood up and spoke out when others didn’t. That should still mean something for a judge, who rarely go public like this.