Probably why none of the internal people cared either. They didn't want to be the person on the line in case it was determined that the usage wasn't valid.
I'm curious how you bricked it beyond repair though. Most devices have a way to enter a recovery/flash mode where you can upload your own firmware from the bootloader. And if you haven't unlocked the bootloader then I don't get how you could have bricked it unless there's an Android bug... which would have probably triggered a more serious look.
Sometimes I name certain APIs/function names/whatever with a "do_not_use_or_you_will_be_fired" suffix. Generally for hacks I don't want people to copy-pasta. I can't actually fire anyone, but it gets peoples attention (especially more junior folks).