"LOT Polish Airlines initial and recurrent flight training syllabus does not include practical training for an overspeed warning event. Consequently, flight crews may respond improperly and exacerbate the situation. "
IMHO the apex of the problem and by all means not unique to LOT.
With todays complex systems, and us pilots being mere mortals with all our flaws, no wonder things like this continue to happen. From my point of view, sim sessions are mostly about checking (and checking things that can rarely be practiced beforehand, anyway) rather than training.
Might I suggest a radical makeover of training worldwide - to include training rather than just checking (disguised as training), with a substantial increase in quantity, such as 8-12 sessions
pr year, divided into 4 or 6 blocks?
While the 4-hour sim slots might be effective for checking, they are not very effective for learning. Learning is a change in behaviour as a result of experience - too much stuff in too little time rarely produces the desired effect.
An (almost) cost-neutral way of utilising the sim would be to do two-hour blocks, twice
pr crew. Let's say 1 hour brief - 2 hours sim - 0:45 debrief, 0:30 lunch, 0:45 brief - 2 hours sim - debrief. Same sim time, more time for organizing one's thoughts.
As long as a system like this (increased training quantity) would be mandated, it would not be an competitive disadvantage for anyone. It's a win-win situation. A modest increase to 3 or 4 sessions
pr year would even be a great start.