Re:The State of HTTP in 2022
by tialaramex on Sunday January 01, 2023 @04:09PM
(#34210908)
You've jumped from assuming the Web PKI, which isn't required, to assuming online revocation checks, which is even more not required.
So how does your imaginary version of a transport-layer guarantee a message can't be tampered with if it trusts keys which are revoked?
Web PKI is not the only way to revoke keys.
Handling certificate revocations (which would be needed to "ensure security"), does indeed imply the use of some way to check for the revocations in a timely manner. The revocation lists themselves can be tampered-with.