Its not horror. Slow scifi with monster

Rating: 7/10 (8 August 2018)

I watched this bacause no dialogs.
I like when actors are acting not talk too much.
I am happy to seen this experiment from director.
Unfortunately I am not happy with the end scene as TOOOOO slow reactions what not makes dramatic tense, just made me tense.
Some things I dont understood, what is writet and dramaturg mistke.

why have not built soundproof room
why haven have distraction sounds around the camp? Make a noise, and soon as the monster there make other sound for thise cases when people have to have make sounds, or done it by mistake. Eg: step in that nail.

She has to shout, than they just turn distraction sounds other side of the farm, and launch some rockets to get away with it.

why they snad still when sound been made? Ok, made a sound, than run, leave the scene!!! This monster will come exactly where the sound was.

The father try to help the kids and make sound, but why not strpnaway from the monster? Than make sound again?
It sinple as we played in our childhood one kid is blindfolded and others make sound. The blindfolded kid have to catch the others. Of course who makes sound try to hide and not stay sill. 6 years old kids know how to do this, so how could be dramaturg, writers and directors dont think of that?

the waterfall hide their sound. Why not deliver the baby there? There is water, loud sound, and safe. I dont understood.

Without this dramaturg mistakes good film.