[Misdicorl]

The article is clearly discussing E2E encryption between consumers of email and quite clearly uses PGP as a relevant example.

It even mentions hop-to-hop TLS of email as an obviously good idea (and presumably would likewise say at rest encryption is a good idea). None of this matters to the author's fundamental point. End to end encryption in email is silly and can't work because it isn't enforced at the protocol level.

You either haven't read the article or haven't understood it.

Edit: or disagree with its fundamental claim, but are talking about irrelevant issues instead for some reason.