Decent film. Unreasonable criticism

Rating: 7/10 (27 April 2017)

DO NOT READ IF YOU HAVEN'T WATCHED THE MOVIE!!!
The movie was decent. The acting was better. The plot was completely different. I enjoyed the movie enough to be able to watch it again sometime. The criticism this movie received however is for a great part unreasonable and not thought out. I'll go over some of this criticism as honest as I am.
"The plot made no sense". Yes it did, you just didn't get it. Also that not constructive criticism.
The reason for the guy to start killing everyone was dumb: It was, but then again, this is a guy with anger problems who is enraged. He is dying and he doesn't care about anyone anymore.
The girl is stupid for reaching her hand into the trap: No she wasn't. You have to realize that she knows she is mere minutes away of dying. She is desperate and not thinking. If she didn't get the antidote she would have died which is why she stuck her other hand in the trap to retrieve the fallen part of the syringe.
How come Amanda suddenly knows to check the walls and find clues after having been in a game that wasn't similar in the slightest:
Amanda is the new jigsaw so of course she is gonna move the game along. No one else knew exactly how the games went so Amanda was able to do this without much suspicion. Also Because the kid is the only innocent one, Amanda protected him and left him alive. which brings me to...
The clue of the kid being the officers son has nothing to do with anything: It does. This was the kids part of the game. If his identity would have been reveled too soon and without his knowledge he would have been killed and failed his game.
The house was made of wood and could have been broken down: At 33 minutes Xavier tried this and it turned out the house was caged in, so it wouldn't have mattered.
In terms of lighting and all that; I thought it was okay, but that's without any knowledge on that aspect.