Perhaps you should listen to the podcast rather than looking for reasons to criticise her.
Also, I don't know about you, but I generally do take a bath naked.
Gaiman asked Scarlett if she wanted to take a bath. She assumed he meant did she want a bath - not that he'd get in the bath with her. She'd been travelling to the island, and it was the evening, the child was out, perfectly reasonable to have a bath to freshen up.
It's an extremely complicated situation which is why Gaiman got away with it for so long. Coerced consent is a completely different situation from being attacked by a stranger. It's complex, desperately under-reported, and many women fear being disbelieved.
Scarlett was a very young adult, a lesbian with no experience of sexual contact with men, estranged from her family, living with Gaiman/Palmer with no where else to go, and just for good measure, they never paid her for the work she was doing for them. She literally had no escape.
An extremely famous man with a reputation for being a kind, trustworthy soul reassures her that it's all perfectly fine and natural, and that she has no cause for concern.
It's absolutely sickening. She was lulled into a false sense of security and he picked on her precisely because she was so vulnerable and had nowhere to go, and no one to protect her.