Maybe, but it’s also possible that these are all responses to the events of Wednesday, and responses to other’s responses to Wednesday.

Twitter got all the spotlights, others try to rush onto stage before the audience stops applauding. Corporate decisionmaking structures at Google are clearly slower than a Zuckerberg whim, but their lag is surprisingly low.

Personally, I think it's a bit sad that Twitter with the hard tweet removal is effectively protecting Trump from being judged for his statements by the general public. The radicals got the messages anyways, but superficial observers are supported by the remove in any "bad but harmless" perception of Trump they might have.

My theory is they tend to move in sync for fear of the Twitter checkmarks calling them out for falling behind on the current cause d'celebre.