The concept of digital ownership really is a complicated topic, even before distributed hash technology people on forums commonly discussed "is (digital) piracy stealing?".
DHT and are new and NFTs are a completely different model of ownership, with it's own model of value.
If you really peice it out you'll find that it's the strongest (but not necessarily useful) form of "digital" ownership that we've got.
If someone can't explain something simply, walk away and don't give them your money.