With what is going on in the game
brother killed and father kidnapped and all the stuff going on with poor Erica, I think the swearing fine...lol
I think in this case it ads a little realism to the game....Sherlock is a much classier character and nothing would phase him to that degree. He is calm and analytical.
I think it ads to the character development.
I am sure most will disagree But in this case I think it is warranted