This entire blog post is an indictment on the sad state of affairs surrounding UX around crypto. There's so much intrinsic complexity around proper crypto that the focus should be on removing as much accidental complexity as possible.
Yesterday, I installed GPGMail on my Mac and had it generate a keypair, and the procedure was actually rather pleasant and clear. I did not know yet about this master- and subkey scenario, and the setup wizard did not offer this option, but I think the UI could be extended to support this without too much extra hassle.
