It's not a weird description at all. Imagine that one day you had what you thought was a valid cause to sue some dodgy corporation over some dispute you had wit

It's not a weird description at all. Imagine that one day you had what you thought was a valid cause to sue some dodgy corporation over some dispute you had with them, only to discover that your ability to sue had been taken away because that corporation had already taken the judges and legal clerks in your state to court and won a lawsuit against them which neither you nor anyone else with actual reason to sue ever had a say in. Because the Texas law was structured as a purely civil remedy just like if you were to sue someone else or some business over a dispute, allowing this kind of lawsuit against judges would open a direct route to this happening. It would create a way to entirely bypass the part where cases and controversies actually went to trial with the parties involved able to present their case. There's probably more sensible ways that the Supreme Court could've defanged that law, if they wanted to and the issue hadn't been rendered moot anyway.