Or when they spend 10 seconds reading what the original was about they simply got the two last numbers of the date mixed.
A lot of revived series are deliberately set earlier than the originals so that they can both tell an origin story for the newcomers and also reassure the old players that they aren't messing with canon too much.
Depending on the setting this may also allow for more appealing options, in this case having an agent who is still human. Deus Ex: Human Revolution is another good example here: being a prequel means the player character can have fancy robot arms with elbow blades and whatnot compared to the much more subtly enhanced nano agents of the original games.
Where it shows cluelessness is in referring to it as a shooter and forgetting all about Syndicate Wars.
Sequels are often ignored when relaunching a series. Deus Ex was an exception because of how famously disappointing the second game was, but in most cases they will only talk about the first game--especially since it is often the most loved one.
Brushing over the fact that the original game was a much deeper experience is also common enough. While developers want to push increasingly simplified games they don't want players to feel like they are getting a worse experience than the previous games--hence why you'll see damage control for things like Skyrim removing spell-making in favour of having a pre-made spell in each hand; the resulting system is obviously much more limited and yet they brag about how it is more flexible and exciting than ever before (the latter at least is partly true).