What ever happened to running the power up every 1,000' or so to warm the Engine, did you do that?
ACMS. Disregarding your somewhat sarcastic attitude, your profile seems to indicate you are a A330 captain. That explains things. That being so, you probably learned to fly on old aeroplanes like Cessna singles. You may have forgotten (or were never taught) that one does not increase power every 1000 ft or so while gliding, simply to warm the engine. That is a myth. The purpose of increasing power during the glide at regular intervals is primarily to reduce the possibility of spark plug fouling. Also, as carb heat is less effective during closed throttle operations such as the glide, the extra power used in spark plug clearing increases carb heat efficiency even for a few seconds, thus making it more effective in preventing ice build up.