I am convinced that what we are seeing in raw stats - particularly in scoring versus what the expectation is from Babs are two entirely different things.
Every player on the Wings roster is expected to be defensively responsible and spatially aware, the "away from the puck" that he continually refers to. Despite these kids showing strong offensive numbers, if they don't do pursue the puck, positioning themselves to find space on the offensive side of the ice, and develop the awareness to hustle to close down passing lanes and position themselves in anticipation of where the play is moving, they are dead to Babs.
That's why he favored so many pedestrian players (a la Cleary, Andersson, Lashoff, Ericsson, etc.) despite them not having any statistical contribution, they do the "right" thing. This comes at the expense of players that appear to be more skilled (Smith, Weiss, any number of our prospects) because they haven't learned how to do the small things well despite showing flashes of statistical relevance and skill.
Smith seems to have the upside to quarterback the PP, however he often times shoots at the wrong time where he has no backside support and on the oft chance the shot is blocked, it causes a break the other way. It's chasing offense at the expense of exposing poor positioning. While a player who is more conservative like Lashoff, wouldn't even attempt something like that and always make the safe play but brings nothing else to the table.
How this pertains to Tatar, he threw up great offensive numbers and showed tremendous amount of effort, although I think where he taken this to a whole new level is how responsible of a player he is. He seems to have gained a real element of patience to his game, and no longer gets run out of the play and eventually losing the puck while trailing the play back into our zone because he has to play catch up. He isn't trying to "win" the game by himself, but lets the play come to him and that's impressive maturity in the last year. Scoring aside, because I knew he could do that, it's his approach that I think has improved by leaps and bounds. And I think that is what has directly correlated to his increase in ice time and PP time because he's proven to Babs that he can play without the puck and make good decisions, not just rely on his ability to score.