I don’t think the narrative is he was shut up is correct. Much like how there was a procedural step missed for selecting a trial by jury or by Judge in one of his trials, the judge asked for confirmation that the defendant Trump would stick to the rules of keeping his speech to the trial matters and not to the various other things he likes to ramble on about like a lunatic in a asylum.

The judge never received a response from the defense lawyers so it just expired after a few days. I suspect his lawyers didn’t want Trump to get up there and make matters worse for himself.