Strange don’t you think? How a clone can very rapidly develop a totally artificial personality and fake memories. You are not selling this idea. Especially as she was a failed, lifeless clone until the Phoenix touched her and sparked her to life.
Plus Laura isn’t a clone anymore and Gabby was very early on revealed to be a little more scary and psychopathic than she lets on. Hmmm. I suspect TT had a plan for her that was never fully explored but may come back to shock us.