Oh pooh.
High profile wall street criminals, terrorists, mobsters etc have been successfully detained and preserved for trial- under enormous scrutiny- at the MCC for years.
Yes the system is overburdened but the job of the prison administration is to prioritize under such circumstances and if you cannot bring focus and oversight to one of/the highest priority inmates in your custody, then you need to be removed, because a more competent administration could, even though systemic problems exist. Thus Barr has removed him/her and there is MORE TO COME.