Erimus isn't a household name? I reckon he is, mate, along with possibly only two others; one shoots videos with nice backdrops telling us stuff we already know, and the other shoots sci-fi writers pretending to be space princesses.
None of that qualifies anyone as a household name. I've never even heard of them and I'm into video game spaceships and sci-fi.
So who are the real household names because of their contributions to the game (no not media or social media)?
Scott Manleys pretty well known, but even he's not a household name. I'd say there are none we are just geeks who play a video game, well some of us anyway.
It's not a popularity contest, of course, and it's not sour grapes to suggest that the people spearheading the organisation of perhaps the largest long-duration event in video gaming history should have had an invite in order to assist with planning.
It is a popularity contest that's why they chose how they did, there's no point in them reaching out to someone with no following when they are generating hype.