Because that's fluky as all he'll and shows how random the playoffs are. Plus it shows how few good teams there are.
the roster was mostly the same but that team really came on in the second half and was essentially a different team.
midyear, they gave away larry murphy (ironically to pittsburgh) and changed course philosophically, gelling around new coach bob gainey’s suffocating defensive system.
there was also a lot of talk that the team came together and rallied midyear during gainey’s wife’s cancer scare.
they were 15-11-6 down the stretch, and 29-20-6 if you count playoffs. they had been 12-28-8 before that, third last.
that said, on the fluke side, the other difference is the powerplay caught on holy fire. it was third in the league (one goal behind #2) after jan 17. #2 in the playoffs,
nine goals more than pittsburgh who were #2. they averaged 1.5 pp goals a game in the postseason, which is bonkers.
edit: and a stat that is a little bit of column a, little bit of column b: prior to jan 17, their starter jon casey was 19th in GAA and 26th in SV%. after he was 4th and 5th. he then had the playoff run of his life.