USB 3.0 is being finalized and USB 3.0 devices will appear next year.But there isn't USB 3.0, so you have no argument. You are just wasting everyone's time.
But the point he's making (I think) is that it might turn out that the two USB ports on the MacBook are 3.0 ready. If 3.0 is backwards compatible with 2.0, then perhaps this is possible, but I doubt it.
The fact is, Apple killed off FireWire because it was unpopular among consumers. Simple as that.