He was surprised by the lack of reaction? Bro... that scene was so over the top and out of left field it was simply too much to do anything with... like, all context was missing, so what was there to worry about? We reacted to how fucked up it was, sure, but caring about it being Maya? No, how could we? we have next to no clue what happened and it's such a severe jump there's no way it wasn't going to just be reset... also what you said about her being a lesser version of Maya he's done a shit job of getting us to care about, but still, as a writer, i can't fathom wtf surprises him about the lack of reaction... he didn't write anything to react to... any head in the box would've garnered the same response cause there's no person in the box, just a head... a dead, soulless head...
Edit: am i making sense here? Like, there's the character, the person Maya, but she wasn't in that scene so the mind does not jump to 'oh no, is she going to be okay?'...