Hello there, sorry for such a late reply,
this group is for ANY Romanov-related artwork on this website, which is not offensive to the Imperial family or any of our members. While I personally do share your sentiment of disbelief in any "past-life" claim (and my, have I seen dozens of such claimants already) I am not in a position to talk anyone out of it, and since the artwork in question does not break any rules and is Romanov-related, then there is no valid reason for me or other admins to ban it from our group.
I hope that these posts do not turn you off from your interest in the Imperial family and hopefully will not drive you away from the group!
Best regards