The preponderance of evidence does. Greg qualifying his answers with things like “as far as I know” comes from him not knowing what the set designers would be doing a year or two down the line, or what the story team would necessarily be doing and what the needs of the story would be.
It obviously never became an issue with the sets or story.
Therefore: the Mahri masks are the standard form of those masks, sans visors and gills. That’s not just my stance, that’s TTV’s stance as well after considering all the evidence. The fan fiction masks were allowed on the premise that they were variants of the standard shapes that the Inika and Mahri masks represent.
And that’s it. I’m done arguing this because it’s been argued before and there’s nothing else that can be argued for what the standard shapes are.