From kickstarter:
"Hey everybody! My name's Matt Colville I'm a writer and designer in the video game business and before that I was a designer in the tabletop business!
I’m the author of the official Critical Role comic, I was the lead writer on Evolve, I was the lead writer AND a designer on Mercenaries, but before ALL THAT I was a designer in the tabletop business.
I was a designer on the original Dune CCG and the RPG. I worked on the Star Trek RPG, I did the starship combat rules for this one, and I worked on several third party books for 3rd edition, I wrote a whole monster book! And I designed mass-combat and nation building rules set for 3rd edition. I designed the official Knights of the Dinner Table card game, and the Red Alert! Star Trek starship combat game, those were both tons of fun.
I've also got a successful YouTube channel where we talk about running the game!"
Can't find any D&D designs he's done, but obviously a very talented and experienced designer. But I'll wait until the rules are reviewed before I'd buy - I'm not sure how much play testing etc will go into them.