The writing is pretty much WYSIWYG...
However, in real life I think this would be a polite response. It might read like bullshit but it's quite fair to see he's trying to make these points. Everything else not in the email (e.g. why does the VC not want to invest) would be speculation.
Not a business for introverts or borderline aspies like myself, I guess...
Basically there is just boilerplate to say "no thanks" but no real information. Just a general feeling that they are not able to really evaluate.
No, he says, "yeah, maybe".
Wouldn't you do the same if someone came to your door looking to sell you something?
My usual reaction is "what else d'ya got?"--until they run out of "else"s.
This way, the situation is reframed as them not having anything I like, rather than me not being willing to accept what they have--and it's then much easier to just politely end the conversation.