Does Chuck really want his illness dissected in open court? He's the complaining witness, and the credibility of witnesses is always at issue. Does he really want to answer before a jury the question "Why does your suit crackle when you move, Mr. McGill?" "Sir, do you always, when going outside your house, wear clothing lined with Mylar?" Then they could call that hot doctor to the stand to explain how she tested Chuck by concealing a device without him noticing. They could call the two cops to testify about how they found his house and how they had to tase him.
I think Jimmy changing his name is the compromise they work out.
Mike, on the other hand, is insane.