Yup, escape clause after escape clause after escape clause............I have news for you: the 1st Amendment doesn't apply to private organizations. It is governmentally stipulated proscriptions of expression/speech that the 1st Amendment says are impermissible. A private organization like a web hosting company is limited only by its own terms and conditions, which customers must agree to prior to the company hosting anything on the customer's behalf.
Give that is the way the 1st Amendment works, no First Amendment rights were even slightly infringed, let alone destroyed. That some organizations lost their hosting has zero impact on anyone's 1st Amendment rights.
No, but there could be legal (civil) repercussions if the host violated their terms of the contract.
It would be utterly shocking if all of those contracts don't include terms of service that are subjective enough for them to shit down any site they want without violating any contracts.
Have you ever read a website hosting contract?