Strome + 22 doesn't sniff the 8th overall pick.
The premise was if Strome can bring back something like 8-12. I said I would even add to that. If it's not, then it's not. I'm presuming the deal is on the table.
You may be right. Still, at some point Strome is worth something. He's a 26 year old coming off a 70 point pace season. He has his flaws but some team is gonna see what he did with Panarin and think, "Hey, he can put up 70 points with our star too." The Rangers' problem isn't that Strome isn't a valuable player, it's that he's not what they need moving forward.
If the Rangers were in desperate need of points producers Strome is a good piece to keep around, but they aren't. They have Zibanejad, Panarin, Kakko, Lafreniere, maybe more, in total a bunch of guys who are gonna hit that 70+ point range. What the Rangers need is a true center, at least a 2C, but given Zibanejad's injury history and age (relative to Kakko/Lafreniere/Kravtsov/Chytil), what they need is a guy who can probably be a 1C someday if surrounded by top wings (once Zibanejad ages out, it's likely that Kakko et al will still be in their mid-20's). Besides also being on the older side (again, relative to Kakko/Lafreniere), Strome is too one-dimensional, he is a guy who can put up points when next to an elite player but he's not a complete center, he's not a good defender, and he's not a line driver if he's on his own (on say, a third line without Panarin).
If Strome was on a cheap 4 year deal right now, there is no harm keeping him, letting him continue to solidify his trade value for another season or two, and then maybe making a move. But the Rangers are nearing a decision point on him: Give him a long term expensive deal (including, if he demands it, possibly a NTC), let him walk in free agency, or trade him immediately while he still has RFA control that is worth trading for.
I highly doubt you can string him along with short term cheap deals. He is gonna want more (especially after bouncing around, he's gonna want a permanent home and a pay day), and some team is likely to give him more.
In any case, I'm not saying liquidate Strome for nothing. Even having him for one season and then letting him walk might be worth more than trading him with 22 to get up to say.... 20.
The trade scenario where moving him makes sense is if it's for a player in the draft you love. Ie, the Rangers love Lundell allegedly. If he slips to 14, that's a scenario where we have to be trying to move him, or something, to get up that far. If Lundell, Mercer and Jarvis go 11-12-13, and we are now looking at guys like Holloway, Zary, Gunler, and Amirov, well.... that's when the trade doesn't make sense anymore. There is a dividing line between these prospects and it seems like common consensus is that Lundell and to a lesser extent Mercer and Jarvis are good bets as quality 2nd liners someday. It seems like once you get to Holloway tier, you are more likely looking at quality third liners.