I think Deathstrike actually works for Wolverine. Here, her story's pretty much over. Her Dad is dead, her boyfriend is alive and that happy sunset is comin' up.
Bt in Wolverine, she's a foil for his odd code of honor gone way too far. Yes, she still hates her father, but she's honor bound to avenge him and that includes those that benefitted from his work, even at the cost of her own humanity.
Though it would be cool for Deathstrike to meet up with DD, just to reflect on how far gone she is.