I'm more skeptical of Sylvester than Felix on this - Felix has shown an interest in the robots, Sylvester who has every reason to be scared of her, wouldn't keep mum IMO.
Also, she had dozens of pictures she drew from the fixing room with the men in the HazMat suits, but we only saw her take off once. A few things in the Maeve situation seem slightly plot holey to me.
Another small thing, kinda stupid, but whatever:
You had a massive kill scene with Indians and soldiers yesterday, had to be 50-100 dead bodies at the end of a battle like that... Wouldn't that be a little labor intensive for the human crews considering there was only one guest for that entire 'scene?' IDK, stupid observation, but crossed my mind.