Evrogopnik MRA ant-SJW
[/QUOTE]He's not the only half-Eldar Ultramarine either. So no, that doesn't remotely afford us a license to ignore canon.
Hey, check it out, an Eldar rune overlaying the Ultramarine one on a pauldron.
This parody comic isn't canon, of course, but it does neatly establish just how many sources in the game agree there's half-Eldar Ultramines running around.
Does the fact that new lore replaces him with Trigurius not ring a bell?