I think the production value is top-notch but I guess having President Heller address the MPs in the House of Commons was a set too far. Herding the MPs into a classroom looked a little lame IMO. As for those few boorish MPs who lashed out at Heller, prompting him to freeze, I think that’s a mischaracterization of the British. But it’s in the script so, meh.
Building a parliament set was probably out of the budget, so they made do. It did look lame, but passable.