So she was offered a body double for nude scenes (before any nude scenes was filmed in season 1), turned it down without understanding how many scenes she would film. Yeah an intamacy coordinator probably would have been best for all nude scenes on the show. But I wouldnt say she wasn't offered a double, it sounds like she wishes once she realized how many scenes were being shot nude she said get a double sooner. As she went on to later to do nude scenes in the series because she wanted more control over the character during those scenes.
That said, taking the role of a young woman in an incestuous family who you know gets raped in the first season and aspires to work her way to the thrown currently held by an incestuous brother/sister fucking family... The pressures had to by high as a young actress to not say I don't want to be remembered for performing those sex scenes.