True. If they didn't do achievements, they'd be in trouble. But why show them off before confirming you're doing them...?
It doesn't matter. Most of the achievements are listed as "complete x quest" for factions we already knew were going to be in the game. And the ones that aren't are things like reach x level or do this x number of times no real spoilers. It isn't like seeing these achievements is going to be a deal breaker for most people. In fact the achievements are very similar to Fallout New Vegas's achievements