Sigh. I wish that stupid "you think you do but you don't" meme would just die already.
It's not Blizzard's official policy. It was one guy who works for Blizzard speaking off-the-cuff on a panel. Don't take his word as freaking gospel. Lore has said he'd love to try out Classic realms if he could, but that doesn't mean Blizzard is implementing those either. Learn to differentiate between the actions of the individual from the group's stance on a subject.