I think this would be to shut down delaying tactics and attempts to escape into the civil courts. Because the civil courts will be down, there would be no reason to entertain jurisdictional arguments.  And MT likely have very fast processing compared to civil courts.  So it's cutting off escape paths and shortening the timeline.  Otherwise the lawyers that fill congress would likely find loopholes (not the fun rope kind) to hop into and try to wait it out til 2020.  And even if they were obviously guilty to all parties involved, they likely have the funds and knowledge to prevent the cases from concluding.