I don't know if you guys had already mentioned this, but Jim said the creatures were aliens. It annoys me that the backstory and future of the universe won't ever be expanded on, but literally every critique about the creatures and state of humanity can be hand waves with who knows what happens when a super strong, blind alien race lands on your planet. Dill with it.
But yeah, annoying questions that'll never get answered aside, I thought this was a great film. Acting was all around great. The feels when you realize the sister is deaf and can't hear the sound the little bros toy made while everyone is freaking out on the bridge...ugh...