I don't think it would make any difference if it had been made 10 years earlier. The problem you have with these two are neither speak. You needed humans or a race that speaks to help drive the story on. Without it you just have lots of action, fighting, gunfire etc but no real storyline or plot. Even computer games have some kind of story to explain why you are trying to complete the levels and kill things.
Once you added in the third element of the humans lots of people would be unhappy as it's slowing the film down, there's not enough action, The aliens or predators weren't in the film enough at all or compared to the other one.