When I said 4 doesn't hide it as well i specifically meant that the lack of dialogue choices makes it even more apparent that there's little impact you can actually have through dialogue. 3 was just as bad of course, it's just a lot more apparent since it's not hidden under a list of possible, if useless, choices.

It's a shame Bethesda didn't learn anything from New Vegas though. There was a game where your choices mattered.