Ah this is clever! Well done persevering and making Something, and I actually really enjoyed playing this! Just assume everything except the things I'm about to say are positive haha.
So, criticisms. Maybe this is just me, but I think first person platforming is an inherently very flawed mechanics set. Like, Mirror's Edge, a game built entirely around the concept of it, a game with a decent budget and some serious work into animation and physics, still isn't perfect and some sections are just frustrating. Put those mechanics through the 48-hour-game-jam-machine, and suddenly the work you put into making a well paced story is sabotaged by my crap at platformer ass repeatedly failing a section. Also, at some points failing cut off the voice track, including the most important part of the story, but, game jam, and I could fill in story through context.
I really liked the 'machine' bit though, and this made me think. With patience, it's relatively easy, and the mechanics perfectly fit the point you're trying to make. Slow, methodical, like a machine. If more sections were like this, I think I could be much more strongly attached to the story you're telling.
Otherwise, well done! Hope your team is better next year...