Ending (spoilers obviously)
So this was an alright movie, well acted, well shot, some of the dialogue behavior was dopey at times but that can be attributed to them being so isolated for 9 years.
Anyway when Patrick goes to lead the creatures away I understood the point, he was trying to redeem himself for his past mistakes. I got it, fine. But my issue is that it was completely unnecessary. They had learned that sound attracts them and very loud noise can deafen and cause them pain...so why did he need to sacrifice himself? He could have just tiptoed over to the gasoline and set up a simple trap while everyone just tip toes away. Dig a small trench in the snow, open up the gasoline, stick the flare at the end of it...flare burns down, big boom, creatures all dead or deafened. Everyone lives to see another day.
The monsters just shouldn't have been that difficult to outsmart, when Patrick crashed the snowmobile the thing was right on top of him and couldn't hear him. The ending just seemed pointless to me.