He is still kinda wrong in the sense of thinking about it in terms of pracy bein a thing that you can "combat".
You can make buying as convenient as you want, and there will always be a number of people who will still pirate.
Some of them wouldn't have the money for it.
Others grew up pirating, and find it more comfortable and natural than starting to bother with ANY online store.
Some others are practically non-audiences, who feel a mild urge to try out the game, that othwerwise comes nowhere close to wanting to own it.
Others are actual customers, who already did buy another copy and then lost it, or whose preorder was delayed so until then they helped themselves to a copy, or who want to make sure whether it runs on their machine.
Live with it, and focus on selling the game to potential customers, instead of stopping others from also playing it. The illusion that you can just defeat all piracy with convenience, is almost as delusional as wanting to defeat it with DRM.
You shouldn't add DRM to a game, but that's because DRM is moronic, not because if you remove it then you magically gain control over all piracy just as you wished anyways.