John , with all respect , your flat out wrong. New coins are created by securing the authenticity AND accuracy of transactions. Bitcoins are NOT generated from dollars coming in. You obviously don't know how it works so why don't you stick to what you know or do some research.
He's a Bitcoin outsider - what the heck makes you think he'd talk BTC when he says the word "revenue"?
He means no new value (currently being measured in USD) from the outside world unless it's through more investors - and at the present time he's mostly speaking truth. Mining secures the network, yes - but without some means of giving that network any sort of value it's all just meaningless bits... comparing e-penises in the form of GPUs.
My guess is you're alluding to that because mining costs you money your Bitcoins have to be worth something - no one gives a shit what Bitcoins cost to make, that's not what gives them their value.