Attempting to capture the glidescope from above will almost always result in an unsatisfactory outcome, regardless of the autopilot make/model. They are all designed to capture from below. But I don't think the 2005 accident cited has much to do with the accident which is the subject of this thread. Letting the autopilot crash the aircraft is pilot error, either because of improper setup, engaging it too late, or both. I don't know if this is the case in this accident, only that rumor seems to indicate it. Rumor is all I have for now. It remains to be seen what the NTSB report will show.