Domain name and wire protocol. What's that worth in bankruptcy proceedings? I've never had to shut down a company before, could a gofundme buy the existing domain and source code?
Since your firmware images should themselves be signed and relying on some physical fusing of the key hashes + have some ratchet system, this leaves a web root-of-trust as a liability.
With the setup described above, you could deliver the OTAs signed by some key material that could more easily and/or effectively be made public.