All of the Seinfeld actors solo shows failed brutally. I don’t see this going very far, even if its not a sitcom.
A bunch of spoiled celebs giving marriage advice to common married people sounds like a bomb, no matter how much they try to script the humor and manipulate the outcomes in advance as done with all “reality” shows.
NBC is probably all excited about this because they will do everything they can to make a mockery out of the institution of marriage. But I smell bomb.
Julia Louis-Dreyfus is currently the lead character in a show that is in it's fourth season.
While it may not be in the top of the ratings, I would submit that a show running for 4 years does not qualify as "failed brutally".