They have other options in practice. If they have the means to block Cloudflare, they also have the means to prevent Twitter domains from resolving. (DoH can be blocked too without a big outage)
Cloudflare is notorious for protecting criminals using their service. We'll see what happens in practice, but if they simply comply without any resistance, I'd be surprised.
not only they did not offered any resistance.. but they were the ones that reached out and offered to comply without even requiring a specific court order..
when i posted they had already announced they would comply to the block, i wa referring to that..
that they isolated twitter traffic to 2 specific ip address that can easily be blocked.. the block is already in place for the big ISPs and the rest should have it blocked by the end of day..