Did adding the Feast of Sts. Mary, Martha and Lazarus clear up anything about the identity of Mary?

I was just reading in the [National Catholic Register](https://www.ncregister.com/news/pope-francis-adds-feast-of-martha-mary-and-lazarus-to-church-calendar) that Sts. Mary Martha and Lazarus have been added to the church calendar by Pope Francis and that the reason they weren't on before was because of some sort of concern over whether Martha and Lazarus's sister Mary was the same as Mary Magdalene (seem unlikely if Magdalene means where she's from and these siblings were from Bethany). The article doesn't address that concern, so I'm wondering if any new stuff has come to light or what Catholic scholars think is the relevance prohibiting having this 3-saint feast and a separate feast for St. Mary Magdalene. Does Pope Francis just not think it's a stumbling block worth worrying about or do we know for sure that they're separate people?