Re your question, I did wonder whether he'd listened to every Bump call closely. They're multiple hours of audio, its a huge task for a working lawyer. Could easily have been missed.
OR
OTOH he did say, last week after supplying all that Vietnam & S Yousuf info, that he was going to now look into something which he'd never pursued in the past but which he should have. This might be that item.
Jeremy Mutz - lawyer & former staffer in Meggs SAO - was on STS yesterday and he certainly didn't think this was much ado about nothing. He explained that since 2019 he's been raising the issue of why it was unsealed. ( He raised it with OMDBody but they weren't really interested in the ' Inside Baseball' type material either. He said it would make a great book. Mutz was of the belief that Meggs had forced it but that he can't be sure ( it = unsealing)