I appear to have beaten it. However, the third monster just kinda disappeared. Also, I never figured out what "hold position" is for.
I think in addition to the positioning of the flashlight at the beginning, it would've helped to have a more complex arrangement of the obstacles before the first monster. I ended up learning the limits of the moving stuff mechanic while running from the monster. The ideas that you can only push from the back, can't pull, and can't push if there's another movable thing in the way were not obvious. In particular, the moment I realized I couldn't push a thing because another thing of the same orientation was blocking it was jarring, as that contextually makes no sense.