As others have said, that this used to be Ellen Paige is the story here, so there's no way to talk about it and not mention that. It's not like this is some random reference to a high profile trans person and the old name is being dropped in for no reason.
I mean it's the same person, who always was Elliot Page.
Given that Elliot is well known, it was entirely possible to say 'Elliot Page, star of Umbrella Academy and Juno...' without dead naming and if people still can't work out who they are, then Google is your friend. If anything, it's a privilege (not the right word) to be well known enough that you don't have to be dead named. That isn't the case for those coming out to family and friends and then being referred to in various tense.
