I agree. Even so, it was not helpful when, Rove's attorney first said Rove wasn't the one who called Cooper to personally release him to testify about their conversations, then last week admit that it was Rove who called Cooper with the OK to testify. But there's still no reason for Rove to resign.
Rove called Cooper and said that it was OK for him to testify about their conversations. There is nothing illegal in that.
If it is true that "Rove called" and not a lawyer or some aide called on behalf of Rove, then it is not true that Rove did not call Cooper. It is also possible that "OK to testify" is not a fair summary of what Rove released Cooper to do.