An outdated game concept that was arguably poorly executed in the first place didn't translate into a modern masterpiece? Imagine my surprise.
People keep forgetting the amount of nostalgia involved in memories of the old games and they also keep forgetting the core audience of the old games: think about the kind of people who played games like Duke Nukem when they first came out. It's easy to forget how much wider the gaming community has gotten. This was a series of games aimed at arguably the most immature group of gamers (no offence meant to any particular people) there has ever been, composed mostly of straight white male social pariahs.
The old game was clearly a satire on 80s action heroes, but I always got the sense that there was a sort of wink and a nod making sure everyone knew that the satirical element was at least partially a cover-up for glorifying the very things it claimed to be satirising. Ironically, a lot of the parody of the babe-slapping, beer-swilling male douchebag fantasy seemed a bit less than sincere to me. A parody of porn involving naked people having sex is still porn.
Also, re the 2 stars thing that seems to be in every other post: most reviewers scale their ratings to other games, not to some objective scale of quality. Bearing that in mind, even a particularly terrible AAA game has nothing on truly terrible games. Truly terrible games are unplayable. In short, if you do not understand why this got 2 stars, go play ET.