If only we had some technology that would relieve us of the need to share IP addresses among multiple servers, this might have been unnecessary.
If every server has its own IP then the privacy leak comes from merely connecting to it. It makes ECH useless, but that's not the same thing as making it unnecessary.
If every server has its own IP then the privacy leak comes from merely connecting to it. It makes ECH useless, but that's not the same thing as making it unnecessary.