That is not true. Shakir was really struggling when he was out there as a rookie. Shouldn't be a surprise. He played in a really gimmicky scheme in Boise. But Shakir played a third of the snaps on offense as a rookie. His low target number was down to his struggles getting open. He kept running into coverage zones rather than sitting in spots. He still does it occasionally but has improved a lot as a route runner and his sense of spacing.
Also McDermott did a corner rotation before - Levi and Kevin Johnson did one year (maybe 2019)?