Fewer points and fewer yards won't necessarily mean a worse offense. I think we see more of a change in philosophy that leans on moving the chains vs collecting yards, avoiding mistakes/turnovers to avoid playing from behind, and creating balance to do this.
I think that last piece is really key. Balance does not mean that the Cowboys will end up running or passing the ball more or less, but will try to be less predictive, and I think the emphasis on having a deep TE group who can all catch and block goes along with that.
I've always believed that KM at least to this point in his young career (which is important to remember) is more of a great play designer than a true coordinator. What I always hoped for but never felt KM did was have a playbook that complimented itself as the game and the season went on. Early to mid 2021 was when I really started to lose some faith in KM. You go back and watch those games early in the season and it was magical especially our run game. Running outside the tackles to perfection....multiple OL pulling on the same play and executing beautifully.....until it wasn't. As soon as teams started to adjust to what the Cowboys were doing offensively they never got it back, and I really think it was largely because of how predictable the offense became. The average viewer could call out run/pass tendencies with pretty good accuracy and teams could take that 2 steps further. KM just always seemed to revert back to the same tricks in end of game and critical 3rd down situations.