Well I didn't expect detailed assembly instructions for my bike, though the manual had some general info and there was some specific info for the steerer and a few other things. I received a bag of small parts, most of which I was able to identify but there is one I still am unsure what its function is
)
I have never needed any carbon paste for my seatpost torqued as specified. I understand carbon paste is a bit abrasive and will scratch the post, so if you don't need it... So I think the advice was OK. I wouldn't expect them to provide paste just as I wouldn't expect a bag of grease for a shipped bike with an aluminum seatpost.
They probably shipped it to boxed as they received it from Pinarello, who expect a shop to assemble it and have paste and etc. This could be a good thing, but it also means you need to double check everything like a shop would.