Well, it is working as intended, right now, and the binaries running on the servers we are communicating with right now were likely signed and validated with Linux maintainer PGP keys because it is the only standard and decentralized option.

PGP does not need mass adoption to function, but with solutions like keyoxide offering a more accessible trust onramp, it is there for anyone that wants to self certify and take control of their own identity today, and get signed by trusted community members tomorrow at a conference.