I disagree with this point. Laura has never had healthy outlets for dealing with trauma, and dealing with this by NOT dealing with it and burying it under action is perfectly in-character.
The entire resurrection thing is bound to screw with her head. She lived a whole other life for 500 years and died. So even if from her perspective Laura never experienced it, it's still something hanging over her head. She's already struggled in the past with concepts of identity (the whole, "Do I have a soul?" thing and general clone angst) so it's easy to see how this could trigger an existential/spiritual crisis.
And see Point 1 above for how that could build up.