From vague recollections of previous times this came up, I think this is downstream of the providers getting blocked refusing to cooperate though? I know when

From vague recollections of previous times this came up, I think this is downstream of the providers getting blocked refusing to cooperate though? I know when eSNI / ECH came out, Cloudflare at least made a point of taking about plans to use it to frustrate targeted blocks in hopes that governments would be unwilling to respond by escalating to blanket IP blocks.