I think it is from what you said, they do not use it very often. If at all actually, I would still change it. And no, it does not matter that the tests are no longer applicable. I treated that tortoise in that video one year ago, 2009, so obviously there is still a problem with the new bulbs.
Still bad. Does the hood you have make the bulb point sideways? ( That is what I see most do) if it does you do not want the hood as it is, compact or not.