Urriak Uruk
Gaming is fun, and fun is for everyone
My understanding is that Adkinson gave the 3E team his own extensive houseguest as a barometer on how the new Edition should work, based on that playgroup.
The whole article is an extremely fun read, probably the best article I've ever read on Dragon+ (not saying a lot, they're articles aren't amazing). Lots of fun details, like how the Elder Dragons are from their campaign (including I assume, Nicol Bolas).