What has given you the impression that I don't understand where your desire to trade Boeser comes from? I get that you feel the risk of keeping him beyond this season is higher than the reward for trading him, if you didn't feel that way you wouldn't be arguing for trading him in the first place. My objections are to the idea that trading him is the only move that makes sense.
Apparently my stance on this is unclear so let me state it again:
I think Boeser is a plus asset this season and will continue to be next season, though I don't think 40 goals is likely without another hot streak. I don't think his NTC will be an issue as I think he's a pretty loyal player and will do what's best for the team, but I do think that a regression in his play could take him from a plus asset to a neutral asset that might not have enough trade value to be worth moving. I think there are numbers (term and AAV) that he would take on a contract extension that would make him worth extending beyond the end of next season but I don't know if there are any that would see him continue to be a positive asset. We'd be extending him for reasons of team fit and chemistry rather than the value of his counting stats.
Personally I think that management are planning our window around Miller and hoping that things line up so we can offramp from that into a retool around Pettersson, Hughes, Demko, and hopefully at least one of Lekkerimaki and Willander. If we're on this plan I think that pushes us towards keeping Boeser.
On the other hand, trading Boeser this offseason eases our cap structure, removes the risk of us losing him for nothing, and prevents us from signing him to a boat anchor contract for the sake of loyalty. The assets we get from moving him can offset the potential costs of moving on from Mikheyev and Garland. This leaves us with room to bring in 3 fresh wingers that may mesh better with Pettersson and Miller but runs the risk of landing us another Lindholm who's a fit on paper but doesn't gel well on the ice. Depending on how we decide to allocate our cap space we could run a real risk of taking a step back over the next two seasons if we can find a 25-30 goal scorer who fits on PP1.
I'm pretty neutral on which route is better because I don't know what management's high level goals are and where they see our team. If they think this season is a fluke they're going to be inclined to sell, if they think this was just a larger step forward than expected they might be more inclined to hold and keep buying.