This is also not true. Namely because Jermichael Finley was not reliable. His availability was frequently at issue, as were his cases of the dropsies. He was a threat, but he was prone to lapses.
Since Finley, the Packers benefited from the exceptionally reliable hands of Richard Rodgers at the position. Rodgers lacks any breakaway speed and is a sub-par blocker, but one thing he definitely offers is reliability when the ball comes his way.