Surprised that the announcement came so early in the 2016-17 season, but then again, they were airing Season 3 episodes as early as this summer.
Granted the show was relying a lot on crude humor (even more than Feud), and some of what Craig was doing was getting old (i.e. I will be the cluegiver [thunder & lightning fx]), I will say CNG did help to revive the "celebrity game show" genre by being a show that developed some good celebrity game players that are now familiar faces on the other prime time game shows.
I wish Craig the best in his future endeavors and hope that the brief success of his show, and the ratings strengths of the other recent prime time shows, will continue to add more game shows to the daytime & nighttime schedules.