Ohhh, I see. I figured it was a complete feature and just accepted that I made a silly mistake that doomed me, so it didn't feel particularly bad! I laughed when it happened because it reminded me of how in games where people can fly around like birds, they sometimes end up flying into windows by mistake
I do like the idea of the spider coming to eat you though! That way if you make that mistake at the start of the loop (like I did), you don't have to wait until you run out of time or restart manually. And if you're able to have a long lineage (unlike I did), you have a chance to save yourself and keep going