Big sites care about money more than your privacy, and forcing ECH is bad business.
And sure, kill SNI filtering, most places that block ECH will be happy to require DPI instead, while you're busy shooting yourself in the foot. I don't want to see all of the data you transmit to every web provider over my networks, but if you remove SNI, I really don't have another option.
> require DPI
Enterprises own the device that I'm connected to the network with, I don't see how you can get any more invasive than that.
> countries with laws
1) what countries do national-level SNI filtering, and 2) why are you using a hyptothetical authoritarian, privacy invading state actor as a good reason to keep plaintext SNI?
> Big sites care about money
Yes, and you could say that overbearing, antiquated network operators stop them from making more money with things like SNI filtering.