Forerunner's board-to-board with 10of13

One page believes it to be deleted material not appearing anywhere else (thus likely non-canon). The other page accepts to some extent that he was made up for the sale of a theme.

About the Prophet of Disdain I found him through pity's page and was curious why is he non canon when pity is consider so? Shouldn't both be consider the same regardless? Was going to ask this in the talk page but saw you deleted it few years back so figured I just ask here.