I wrote the post and object to the argument that it primarily covers GnuPG issues.
But stipulate that it does, and riddle me this: what's the point? You can use Sequoia set up for "modern crypto including AEAD", yes, but now you're not compatible with the rest of the installed base of PGP.
If you're going to surrender compatibility, why on Earth would you continue to use OpenPGP, a design mired in 1990s decisions that no cryptography engineer on the planet endorses?
You're missing my point. I agree that you can use Sequoia to communicate between peers also using Sequoia. But you're no longer compatible with the overwhelming majority of PGP deployments. So what's the point? Why not just use a modern tool with that same group of peers?
But stipulate that it does, and riddle me this: what's the point? You can use Sequoia set up for "modern crypto including AEAD", yes, but now you're not compatible with the rest of the installed base of PGP.
If you're going to surrender compatibility, why on Earth would you continue to use OpenPGP, a design mired in 1990s decisions that no cryptography engineer on the planet endorses?