Now as far as I'm concerned Richard Garriott is indeed a videograme legends. I played Ultimas IV to VI and enjoyed them thoroughly.
Bizarrely, though, the write-up doesn't mention the Ultima series. It only mentions Ultima Online:
When the history of virtual worlds is written, Richard Garriott is going to be regarded as the mighty progenitor, and even those who insist that the first virtual world was Maze War will be unable to do anything about it.