[The judge] said he welcomed litigants’ use of AI in general  and even used AI tools to help prepare the decision. But hiding  a set  of instructions is “evidence of its malicious purpose,” he wrote.

Of course you should challenge the court's use of "AI" if you think it has had adverse impacts on your case. You can also use "AI" yourself. But you cannot do so via preemptive malicious intent to covertly influence your court case.

You cannot, for example, submit a printed filing with temperature sensitive ink which alters the text when scanned on a flatbed scanner, and then expect to not by sanctioned because you claim you're auditing whether or not the court used optical character recognition.