>>149376996
It also helped that they were super young at the time, like 5-7, and it would be about 6 years before they went to the digital world and meet their digimon partners. Not to say that there's zero reason the Lazarus team wouldn't remember, since they were all just strangers at the airport and then suffered a traumatic experience, though it's funny that only one of them actually seemed to remember while the others act like it's news to them.