A and E is not violating PR’s right to free speech. A and E has no obligation (unless his contract says it does) to provide him a platform of any sort.
If their hasty action has violated the contract with PR, they will live to regret it, if PR is able and willing to pursue redress in court.
The best thing to come out of this is that PR’s actual graphic description of the unnatural acts is getting widely disseminated.
Neither one of us knows who might benefit from what happened until we read the contract. And it is unlikely that either of us will read it.