More importantly, I want there to be a serious recognition of the ethical boundaries that are being pushed against by this kind of research due to the fact that neither I nor anyone else can yet offer any satisfactory theory of consciousness. That's the whole motivation behind my original comment, rather than the desire to advance a philosophical dogma, which seems to be what you want to impute to me.
You can't talk about ethical boundaries being pushed unless you place that ethical boundary somewhere first. Otherwise we're back to hand-waving: Can I say that because no one "can yet offer any satisfactory theory of consciousness', chewing on a salad is ethically problematic?
Basically, you can't be both worried and unhappy, and completely unspecific :-/
This seems significant:
http://www.theguardian.com/science/2015/aug/18/first-almost-fully-formed-human-brain-grown-in-lab-researchers-claim