Quiet-Place-Monsters not really a threat in the end...
I´m really looking forward to the sequel, because they have to show the monsters as a threat again - and come up with some kind of explanation, how the monsters could have been such a danger to the society:
Because the combination of sound and trap is so obvious that the humans should get rid pretty easy of all of them... of course with mayor losses - but still.
Maybe they do it Aliens-Style. The marines in Aliens would have made Alien a pretty short movie - but in Aliens - thanks to the queen and the sheer amount of Xenomorphs - the threat was real again.