In The Clone Wars Season 7, many have exclaimed that Anakin Skywalker isn’t in it very much at all. I think this is because during all the events with Ahsoka, Revenge of the Sith is actually taking place. So we know where Anakin is and what he’s doing, so to cover what he’s doing would be redundant and somewhat of a waste of time. For example, when Ahsoka is with the Pykes, Anakin is fighting Dooku, when Ahsoka is on Mandalore with Maul and the Mandalorians, Palpatine is revealing to Anakin that he’s the Sith lord, then leading into Order 66 with Vader.