Yeah, this struck me as ‘we totally don’t have a robot packed with a sliver of Weller’s identity + all of his gen:lock work! No, he just like ‘mentoring’ a 17 year old girl...’
Also, I'm wondering if Holcroft actually believed Cammy or if he just played along because he didn't care and built his entire fortune on letting talented people exercise their talents. I take his "Isn't that convenient?" line as the latter.
And given Cammie's talents, she might very well become the lead researcher on improving gen:Lock, making her lie true after the fact.