Yes, MAR and I met several times at conventions. We got along famously. I once challenged him to a miniatures battle, the Lunar Army versus whatever Tekumel army he wished. All in good fun of course. Alas, he never took me up on it.
I did once have a friend who would spend every summer in an ashram. He looked at Tekumel for three minutes or so and said, "Oh, this is SE Asian mythology."
I used to think it was strange that someone would have gone to India and come home a muslim, but have since learned that India is the third largest muslim countries in the world, coming in right after Indonesia and Pakistan.
I've spoken to many people who played in his campaign, and they all said he was one of the greatest gamemaster they had ever gamed with.