Personally, I'm not sure it really changes the bar too much.
While I think the Devils didn't get maximum value for Hall, and probably feared him getting injured and producing nothing in a trade, the value they received is still more than the price for Kreider. So I don't think it's a trickle down scenario where the discounts resonates through the ranks of players who are on the market.
Unless Hall is still out there is an alternative to Kreider, Gorton probably don't really care what Arizona paid. And for other teams, the response is "if you don't want him, don't trade for him."
But with all this comes a warning --- we need to have reasonable expectations for a Kreider deal. We're not getting Newhook. We're not getting Studnicka. We're not getting Necas, or Kaut.
If it's not a first, it's going to be a younger NHL player who is a bit of a reclamation project as the centerpiece.
And no, we will not have an immediate replacement for Kreider. At least in terms of what he brings to the team.