How does this apply to open source? Eg, if two people used PGP, their email providers couldn't decrypt their communications. Would the PGP authors/maintainers g

How does this apply to open source? Eg, if two people used PGP, their email providers couldn't decrypt their communications. Would the PGP authors/maintainers get in trouble for being unable to help? Does this effectively make it illegal to create end-to-end encryption tools for users?