In the previews, this moment was built up as a huge, dramatic scene promising a big moral crisis for our heroes. Considering what we get, it's highly possible that Movie Trailer Voiceover Guy also sells billions of dollars worth of used cars and swampland real estate every year.
"That was the best part of the movie and it wasn't even in the movie!"
"There's a stealth tutorial early on when Ellen Page is training for the CIA in a sequence borne out of David Cage watching the opening sequence to The Silence of the Lambs at some point... The problem is that, besides the tutorial, these mechanics are used on only one other occasion, which — by staggering coincidence — turns out to be the bit that was in the gameplay trailers. Now that's just dishonest, David Cage!"