I don't know how you can say they are looking better from that game. They played hard for about four minutes of the game, got a lucky bounce to tie it, then settled back and held on for a convincing shootout win.
That won't do you any good in the playoffs.
They only gave up one goal and they won. That's better than the last two games.
Nobody wins the Cup in March. Seriously, how many times have we seen the Wings dominate in March, then get knocked out in the first or second round? The playoffs are a totally different game. Everybody gives a little extra. There's a little more fighting in the corner for loose pucks. More willingness to give up the body to block shots. More willingness to stand in front of the net to chip in a loose puck or deflect a shot. All these little things make a big difference in the postseason. Winning in the regular season is all good and fine, but they won't be playing Carolina, Winnipeg, Isles or Leafs in the playoffs and the good teams they'll be playing will be playing much differently than they are now. I'm not saying they won't change themselves, but winning a bunch of games in the regular season doesn't prove anything. Our fan base has learned that lesson a bunch of times.
And we promptly forget it at the beginning of every season.....myself included.