Jagr's prime was during the years Lemieux battled cancer. Had he been competing with Lemieux he'd most likely have 0 Art Rosses. Pittsburgh was giving both star players approximately 6-8 mins on the PP from what I can gather and guesstimate based on his 2000-2001 PP ice time then looking at past PP points.
Jagr benefitted from being in the right place at the right time.
I don't follow your logic. Even if I agree with your premise that - if Lemieux is fully healthy and playing every season in the 90s - and even if I agree that Lemieux wins
every Art Ross in the 90s - how does that take away from Jagr in anyway? Your premise essentially is "Lemieux > Jagr" - or maybe "Lemieux >>> Jagr". I don't think anyone denies that.
The reason why Jagr is regarded as highly as he is - especially offensively - is because the late 90s was still a golden era in terms of offensive talent. Bure, Forsberg, Sakic, Selanne, Kariya, Lindros...lots of really high end players. And he beat them all, fair and square, every year without fail to the Ross.
McDavid hasn't done that yet. He lost to Kucherov, and to Drai
Crosby/Ovechkin didn't do that. They lost to Sedin, Malkin.
I just don't understand how you can say he benefits from 'right place right time' when he won them without Lemieux.
Jagr 2001? Absolutely, right place right time. Without Lemieux - Sakic wins it. That's the only one though. And I'd go one step further - without Lemieux in 1996, Jagr probably still wins (but not by same margin), so probably an even trade-off with 1996.
Just from watching the games. Lemieux was struggling in 96-97 until Jagr and Francis were put on his line. Jagr had significantly closed the gap that year and was poised to pass him the next season imo. And in 00-01 as amazing as Lemieux was Jagr was the clear driver of that line and was outperforming him.
It's certainly possible Lemieux takes another of Jagr's art rosses but it's fair to say Jagr's art rosses were deserved.
Otherwise do we start saying Gretzky didn't deserve all of his? Because starting in 1988 the only time Gretzky won an art ross was if Lemieux was injured.
Even if we agree that Jagr outproduced Lemieux in 2001 and that in 1997 he maybe "looked better" as you say - I don't think this guarantees anything had Lemieux played in between 97 and 2001. Simply put - Lemieux is better than Jagr, arguably the most talented player ever. You can't just assume that he continues to decline/slow down. Ups and downs are very possible. I say there's a very good chance Lemieux wins any of the 98, 99, 2000 and 2001 Art Ross trophies if he's playing. Maybe he splits some with Jagr, but I expect he'd be in the race every time and probably wins a couple.
Honestly - it just comes down to health for Lemieux. He was never healthy. Because if healthy, he was running away with the Ross by ridiculous margins as late as 2003.