Great write up. This is a frustrating issue and I would have expected Framework to better. Most people can't flash a BIOS chip, they would be up a creek. Even as someone who writes software, flashing a BIOS chip would be outside of the realm of things I'm comfortable doing.
Only semi related but I would like to give MSI credit here, a few years ago I was dealing with a bad graphics card and as part of diagnosing it I tried to update the BIOS. I botched it and bricked the mobo (which to be fair was under warranty so a different case to this). I called MSI and RMA'd the motherboard even though it was my fault. Still using the replacement Z-97 PC mate today.
Only semi related but I would like to give MSI credit here, a few years ago I was dealing with a bad graphics card and as part of diagnosing it I tried to update the BIOS. I botched it and bricked the mobo (which to be fair was under warranty so a different case to this). I called MSI and RMA'd the motherboard even though it was my fault. Still using the replacement Z-97 PC mate today.