That makes sense.
Well then. For me the problem was that Enigma was a great game and an awful game at the same time. I absoltely wanted to play it for the athmosphere of being on a destroyer or submarine (lets not forget that was long before SHIII raised the bar), but I the gameplay (stealth, campaign, difficulty) - with your permission - "sucked" for me
Maybe thats why this game is so polarizing the community.
Lets also not forget that modding features were missing. May I say, it should have been "data driven" like SHIII and people would have modded it quite extensively.