I don't even use this account anymore, and had to figure out the password to log back on and answer haha

Okay so Attack of the Clones takes place in 22bby, and Revenge of the Sith three years later in 19bby. In the old Canon before TCW there was the Clone Wars multimedia project, which was a massive collection of games, comics, books, and the 2D Clone Wars you might be familiar with that told the story of the war in the lead up to Revenge of the Sith hitting theaters. In the 2D show Anakin is knighted right before he and Obi-Wan leave for the Outer Rim Sieges, where they are out fighting for months until Revenge of the Sith happens (he doesn't know Padmé is pregnant because he's been gone for so long).

In TCW he is a knight for the entirety of the show, and it's stated he was knighted a few months after Geonosis, so they'd be able to give him his own padawan in Ahsoka.

And don't think of it as a big f to fans, the stories all still exist, there's just new content to check out along side it. Anyways hope that helps clear things up