There was no such statement by DB that I remember hearing or reading.
Have a look at the original campaign page:
https://www.kickstarter.com/projects/1461411552/elite-dangerous/description
"Our galaxy. Its an awe inspiring, beautiful, vast place; with billions of star systems, planets, moons and asteroid fields just waiting to be explored, and exploited. The triumverate superpowers of the Empire, Federation and Independents dominate their core system volumes and constantly skirmish to outmaneouver one another on their frontiers. Outside their influence, in the vast majority of the galaxy, anarchy reigns supreme and spectacular discoveries await the bold.
Its dog-eat-dog out there – you need to keep your friends close, and your enemies closer."
"Your second-to-second actions could have you taking the roles of trader, pirate, bounty hunter, leader, team player, opportunistic assassin, grand schemer, and more.
Starting with a few credits and a basic starship, carve your own path through the richest, largest gaming sandbox ever created, set against a backdrop of raw anarchy, galactic powerplays and intrigue. Do whatever it takes to upgrade your ship’s hull, engines, weapons, defences, cargo hold; constantly improve your capabilities and influence on your journey towards the most coveted rank in the history of gaming - ‘Elite’."
"And the best part - you can do all this online with your friends, or other "Elite" pilots like yourself, or even alone. The choice is yours... "
Well there you have it DBOBE has said you can do it with other elite pilots 'like yourself', ergo those that want a PVE only multiplayer experience should be able to play with other pilots like themselves....
Next...
(sorry my time is short tonight)