Don't think so. Consider the mechanics of both the encounters you listed.
I am getting a weird result in SimCraft, DW frost, default priority, 391 ilvl, 2470 haste rating, 840 mastery, 1500 crit rating (capped yellow hit and expertise). With the normal Patchwerk style fight I am getting the expected stat weights ( haste >= mastery >> crit), but switching to Ultraxion fight mode suddenly makes SimCraft to calculate stat weights as mastery >= crit >> haste. It even shows haste lower than agility. SimCraft bug?