Honestly, this is why I like Dutch consumer law. Dutch law states that the guarantee duration is dependent on the expected lifespan of a product. Continued official BIOS support is evidence that the device remains within its supported lifetime and also dutch law treats defective or incomplete updates as non-conformity. Therefore, in this situation it would be framework fault and the device would also be within warranty.
The Australia consumer laws are also famously strong. One question: That Dutch law is not zero-cost. Does Framework Laptop charger higher prices compared to the US due to this consumer protection laws? My point: We can presume that Dutch buyers will make more (valid/accepted) warranty claims than those in the United States (with comparatively much weaker consumer laws).