I think HCW said he lend one of two prosecutors to the other jurisdiction so that doesn't really matter.
FF said he raised the jurisdiction issue at a preliminary, so hardly running out of options, the delay scenario only works if CB were in the last month's of his sentence imo, he's there until 2026, so any ulterior motive for a delay is a non starter.
I'm not into conspiracys, although it could argued the covering up of the truth in the MM case In a conspiracy, I can only come up with a couple of solutions into why CB's legal team need to establish a different place of domicile.