I don't understand how people don't get the Q post.

The tweet card updated because the site updated, however that is not what Q is pointed us to. Web developers frequently use the card validator privately BEFORE they update a page, to make sure the card looks proper before they go live.

What Q is saying is that: 1, they control Twitter, and 2, they saw the Obama web developers sent requests to validate the GEORGE FLOYD card BEFORE the Floyd event happened.

It's a warning - "we caught you"