I understand what hes trying to do, he's trying to relax the squad, he realises they are going to be together for 10 days or so at the end of a strange and long season. If its not fun its going to be awful and no ones going to want to be there or perform on game nights. By removing the "must win" element also helps to nourish a fun element. I think he's also saying must win is more about games in qualification rather than end of season friendlies, the emphasis drawn there. Beating Hungary when they are preparing for the Euros is hardly must win. Beating Azerbaijan is or Luxenbourg was too.