The Stockholm accident could have had a different ending "if" the ATR system had been disconnected; Of course both engines were surging right after ice ingestion, but reducing throttle on the engines would probably extend their life a bit more, giving just enough time to GA. I'm also aware that the ATR function was unknown within SAS crews, and that may be one of the main issues (along with bad de-icing procedures) of the crash.
This all happened some 13 yrs ago, but my point is: was ATR a "hidden" feature of the a/c's automatic throttle control, and how many "unknown" systems are there on our a/cs today? Can someone be surprised again by some hi-tech-fuzzy-voodoo-logic system that's probably embeded without our knowledge?