Not sure the Nords would've won even if you add Muller to that trade. Nords wouldn't have Forsberg, Duchene and Ricci either.
If they had Lindros, Habs would've been more likely to keep Leclair, Desjardins and Schneider. Cuz, getting Lindros might've sparked Leclair early, so we'd have more offense, insulating Koivu more, maybe preventing his injury, more offense means no need to trade for Reechi and finally, no Roy means you get to keep Schneider. Add guys like Keane, Damphousse, Brisebois and Odelein to that mix. Our only hole would've been the G position. After getting Lindros, do the Habs still trade Corson for VinnyD? Imagine a legion of doom of Lindros, Leclair and Corson. Do the Habs still trade Courtnall for Bellows or do they try getting a goalie like Potvin instead?
That trade would've definitely helped the continuance of epic battles and Nords chances at the cup would've been at its highest between 92-94. Adding Koivu in 95 as a 2nd centermen (or winger to VinnyD) to the Lindros-Leclair duo would've been deadly, especially if they kept both Desjardins and Schneider. I guess that by 95-96, Nords add Hejduk, but not enough to offset Habs deep O+D.
In 92, Sakic, Sundin, Nolan, Rucinski, Muller, Carbo, Foote, Roy. Defense is thin without Duchene. Without Forsberg, do the Nords still trade problem child Sundin for the same package or do they try for a #1C or D instead? They quite probably still trade Nolan for Ozolinsh.
Hard to say which team would've been better, but you can't discount how good the Habs would've been.
Also, in reality, the rising salaries and weak CND would've killed both team and have them trade their best players.