Disagree. Adding signed communications as the default to replace email's completely nonsense zero encryption model is not upping the stakes. Email is the most successful federated software in the universe, but it's fucking time to get some encryption and authn.
Yea, lol, what was I thinking!? It’s not like my granny uses TLS ECDH SHA1 right!? Oh, wait, everyday she does? The tools adapt; email has never had to.