He didn't ignore them, he acknowledged them. He also didn't choose to take correct action, he had no choice. The receiver had another troubleshooting option -- ask the user. Tell the user to check the dish for obstructions, and if the message still persisted after the dish was checked to either reboot or contact D* at his earliest convenience. That way if the user knows the obstruction is there, he can just ignore the message. Tivo just has a warning message about guide data running out in x days, which will make the DVR stop recording as expected. It does not force a reboot.