Aw jeez, you fanboys make me laugh. It's 'Deus Ex: Human Revolution' all over again; the whiny fanboys moaned about the highlighted interactive spots and so Eidos gave players an option of turning that particular function off. Guess what? Everybody who played that game ended up using said feature because SHOCK, HORROR... it made for a better gameplay experience!
Ingrateful curmudgeons, you are. Game developers, you are not. You think you know best; "the game should be completely authentic to the film's canon". Ultimately, there's a reason that Gearbox are in the business of developing games; because they're professionals. You are not. End of.
I'm utterly tired of these 'armchair developers', you're all frakking clueless.
Best case scenario (as far as the fanboys are concerned) - Gearbox ends up including an option to enable/disable acid damage within the single player campaign. Each and every player disables the acid damage after 5 minutes because it makes for a fundamentally broken gameplay experience.
Films and games are two different forms of media. Wise up, people!