Comment by ACCount37

Encrypted Client Hello is also a puzzle piece towards that - makes it much harder to kill TLS connections that are trying to reach specific websites. Also makes it easier to conceal proxies.

The adoption speed is critical, exactly because of what you're saying. It's easy for a wannabe authoritarian to make a decision to "just block all of ECH and QUIC traffic" if that breaks 0.8% of all traffic - but not if that breaks 80% of all traffic.