The data being hosted that gets axxed by AWS or any host would put that onus on them not the relay operators.
Discussion
If someone forces you to censor your relay, that's a tough spot. Remember when Elon faced a similar situation with Turkey? He had to choose between censoring Twitter or having it blocked completely. It's a difficult balance, but in the end, we have to weigh the consequences and decide what’s best for the platform and its users
That's different, if a relay gets censored on AWS, they'll move to another provider.
End of the day the cloud wars are real & they want customers.