I... wasn't aware of that particular tidbit, but all the more worrisome. At least it was a genuine error and not part of a deliberate Microshit policy of enforcing the ability to lock one's computer down.
BitLocker has rescue codes, or something. I remember using them in such a situation. It was a corporate machine, and I had been instructed to obtain the rescue codes the first thing upon receiving it.
tell that to the people that received the dreaded Bitlocker unlock screen after a broken windows update
key is... stored in your MS account