When you play the Estate, it has no token on its pile, so it does not produce the bonus. Estate orders you to play the inherited card and that one is ordered to get the bonus when played. I wrote "technically", meaning not the result is questioned, but the statement, which card causes bonus. I consider Titandrake wanted to emphasize the change now getting the tokens effect, but did so someway summarizing.
Edit : Ninjad by the master.