Probably the same way the KLM 747 didn't see a Pan Am 747 rolling on the reciprocal runway
I do not believe that this quote is entirely true. I believe that the PAN-AM was taxiing and missed it's turn-off, and the KLM took off without a confirmation that the "clipper" was clear.
The pan-am 747 was DEFINITELY not "rolling"!!!!!!
nice analogy, but shame about the facts.