It never claimed to be an exhaustive history of the video game industry so I'm not sure why so many people levy this criticism against it. It reminds me of the G4 show called Icons, with each episode covering a specific game, developer or piece of gaming hardware.
I thought it did a great job of covering the topics that were chosen. It wasn't quite as good as The Toys That Made Us but it was still very enjoyable if you're into video games and I really hope they're making another season.