I'd say your mate has something special on his hands, guess that next season will be the clincher to see if they can do it again but my guess is this thing is a T+ albino.
Not sure if anyone else has seen a PLATINUM mac when they first hatch. But that is exactly how BYUP's PLATINUM'S looked when he bred them a few years in a row.
They had the same prominent pink look to the body with the blueish look around the eyes.