. . . that PlanCo doesn't have the option of opening a saved game paused, and insists on burning in-game-time before the pause option is available, is extremely frustrating to me! [sulk]
Apparently this wasn't one of the QoL improvements in the 1.10.2.60872 update. More frustrating since I've been playing Two Point Hospital, which does allow the game to be loaded paused. (TPH has other frustrations for me, but not this one.)