Let's be honest, Lemieux didn't age well relative to his skillset.
Soft skills are the last thing you lose, so he never really lost them, and his amazing come back 2001 is a testament to just how good those skills were. But already by 1996 he had transitioned from being a physically dominant player to a chess player. He was 30 years old. Not sure about 1994 and 1995 since he played so little (a grand total of 28 games including playoffs).
So his age 27 season in 1993 is the last time we saw him as a physically dominant force. That's kindda young.
My point is that his soft skills were so good that he could keep on dominating the score sheet when he lost a step (or two, or three). But relative to himself, he didn't age well.
Furthermore, his game never "matured". He kept being a strict offensive player. We're far from the current maturation process we're seeing from Sidney Crosby, who is becoming a Selke contender while maintaining a solid offensive production. The same was true of Jean Béliveau.
Another example of this phenomenon is Alexander Ovechkin, who aged very badly very early. He kept his shot and his size, neither of which you ever really lose. Relative to himself, Ovechkin aged really poorly, yet people would sing the praise of his Rocket trophies as proof that he aged really well.
None of this takes away from what they contributed after they lost a step (or two, or three), but it does put things in perspective. I don't see post-1993 Lemieux as a guy I'd want to build around, despite his two subsequent Art Ross trophies. Same with Ovechkin and his gazillion Maurice Richard trophies. They became luxurious complementary pieces. You need a driver as your #1 player IMO. They became great wagons but they weren't locomotives any longer. In contrast, I still see Crosby as a driver, and a great one at that.