Once again the card game and references to season 1 and 2 can be edited out, or can be explained in the story, Season 3 explains that once Digimon was disbanded as an AI attempt they made it into games and tv shows but that doesn't mean that it has to be Season 1 and Season 2 that they where watching, just means that Digimon was a popular game and TV show. As for the advancements of the Digivices, those could also count as losses to Apocalymon since both the card reader and code scanner could be considered part of Digivolution.