Again, you're impressed that they barely beat the worst team in the league in perhaps decades. I am not that easily impressed.
You don't see that happening under Gallant, but the only wins they've had this month are against teams who are not in a playoff position - it's already happening. They are 2-3 in their last 5 and the two wins of theirs were against two teams who have a combined 44 points. The team they struggled to beat last night has nearly 30 less points than the Rangers (!), and they struggled to beat them - seriously, that doesn't make you say "hmmm, that seems off, that shouldn't be if they are as good as I think they are." The last time they beat a team that is/was in a playoff position was November 8th against the Panthers (where they were outplayed from puck drop and only won because Shesterkin put on a godly, otherworldly performance). That was over a month ago. The rub on this team is that they can beat up on the bad teams but when push comes to shove against the actual good teams, they falter. That narrative has certainly been proven more right then wrong this month.
They are not good 5v5 and they rely too much on their goaltending to win. These are not recipes for success. But the fact is this isn't any different than they've been playing all year - they were just getting away with it because they had an incredibly easy schedule up until that Avs game (third easiest in the entire league).
Your view is incredibly shortsighted. You see them tied for 1st in the metro. You're right, it's December, but that argument goes both ways. I've been watching this team for way too many years get off to hot starts and then struggle to make the playoffs. They are only 3 games ahead of the Penguins, who seem to always find a way even though 90% of their team is always injured. I see them one bad week from being in a wildcard spot.
Long view. Playoffs. Championship. These things are important. You're planning a parade for them beating THE COYOTES in December. I see a team that struggles to beat the Coyotes struggling to beat the following teams: The Capitals, the Canes, the Penguins - teams that actual PLAY in the playoffs.
I'm glad the Rangers went to those ECF and the one final, but let's look at the real number that matters here - ZERO CHAMPIONSHIPS. Let's want them to play in a way that will lead them to championships. This team doesn't play that way.