I could maybe see a team doing it if they think they can re-sign said player. Emphasis on maybe.
That doesn’t apply here. Anaheim is invested in their core. What they are going to do is supplement that core with prospects like Steel, to remain competitive for as long as they can. I’m sure they’ll make some trades here and there, for the right assets who are either 1) cheap or 2) can fit their long-term plans, but neither is applicable here. Patches would not be a cheap trade if it costs Steel, and he has no future with the team beyond his current contract.