Adjustable buffer and calibration are going to happen but that should only be used to add that extra buffer if you don't want to get closer to wall in case you have mirrors, windows, displays, tv, china there.
But this is a bug. This should never happen, corridor should never, I mean NEVER, be this far and make player hit the wall. There is a narrow buffer that allows a corridor or a room to violate this rule, but only up to 1cm. And what you encountered is a dangerous bug.
I assume that it happened to you once? If so and you remember when, could you send me a log file (they are in _logs). I store info about seed, play space etc to allow me to reproduce such bugs and fix them.
From your previous video I noticed that you have Oculus, right? Other person also repeated similair bug with Oculus and I might have something not correct when reading play space size. When I looked into it, it was just using single method to get the size, but maybe it gets the maximum size. Luckily I have Oculus as well, so I'm going to do some weirdly shaped play spaces to test it.