If you change your supposition behind your argument (“working condition”), there’s no way for us to reach an agreement or debate clearly on the points that make something valid or invalid. Resale value to casual users is close to nil, for a phone without phone capabilities.
If we where to think up alternatives; allowing enrollment of user controlled key, instead of purely Qualcomm’s keys, would still make the device un-flashable by thieves while giving more utility to end users. Similar to EFI keys management on classic computers.
Fairphone, the company, is a very small fish in the mobile market and I doubt they can even propose omissions from the NDA to Qualcomm.