Interesting discussion. I'd like to share my perspective on Panarin being a Columbus resident and being a partial season ticket holder for the Blue Jackets.
I can't speak to Chicago's motivation, whether it was the right call to make that trade mostly based on salary. I do know that Brandon Saad was a real disappointment for Columbus last year and this trade was a Godsend to the Blue Jackets. Early in the year, Panarin was very passive. I think being on a new team he was trying too hard to be unselfish. Halfway through the year, he started being a little more aggressive but when Columbus was struggling to score, you still had him trying to make great, unseflish passes to teammates that just weren't putting the puck in the net. Late in the year though, Panarin got comfortable with his linemates and started attacking. What you saw was the guy who was on a torrid pace at the end of the season. To the person that said he had to get 13 points in 5 games to get to 80+ points, while that's true, I would argue that it shows he absolutely can be a 90+ point guy the next few years if he stays with Columbus because he's THE guy and he's gotten comfortable.
Admittedly, I didn't watch Panarin frequently when in Chicago. I saw his talent and was excited for the trade, but I understood the reservations about how he would perform without Kane (I never cared for the playoff stuff. Sample size was too small and I don't subscribe to guys being completely different players than an 82-game sample). But everything I've seen from Panarin shows me a guy who's better on defense than he was given credit for (he's been very good). Yes, he plays 43% of the plays in the offensive zone but that's not because of a lack of defense, it's strictly because he's been so lethal offensively. Panarin's scoring has been good but he's such a better passer than I knew.
I don't know how this will go with his contract, but Columbus has scored the most goals as a team since the trade deadline. In fact, not only have they scored the most goals, they did so by like 10 goals over the next closest team. This team is clicking now. I think Panarin is in a great situation because he's a perfect guy to be 'the man' since he can score and pass. Since Columbus has several young compliments to him with Atkinson, Dubois, etc. and two of the best scoring Ds in the league with Werenski and Jones. Honestly I could see Panarin getting to 90 points next year.