Did the writers change the circumstances of Marian's death?

When Robin and OQ were first introduced, was Marian meant to have been killed oleh Regina, as in the original timeline which was altered in the S3 finale? atau did the writers change that backstory? Because if that was always how Marian died, I'd find it a bit strange that Robin could pindah on with her killer, without even mentioning what had happened atau confronting Regina about it. I'd also find it strange that he'd never learn how Marian died, atau believe she'd died in another way, diberikan how the entire village saw her being arrested.