It seems as if the end-point of some drainpipes is somewhere in the battery tray / protective plate, from where it gets released through those water drains as mentioned in the TSB above. (newer cars apparently have 6 of those, my MY 2020 Turbo only has the 2 in the middle, in the TSB they also...
Just got a Taycan a couple days ago, mainly been driving in the rain so far and noticed abnormal amounts of water under the car on my garage-floor. I'm talking like 2 buckets full of water. Thanks to this thread I looked at the drains as mentioned in the video/pdf, I only seem to have the 2 in...