Pretty much every type rating I've done, I've been lucky enough to have a decent instructor who has been "hands-on" on the aircraft being taught, with the exception of A320.
If ever there was a serious or famous incident the, instructors focused on it and went into depth about the cause of the problem. Examples that come to mind for me are A330 Air Transat glider into the Azores and the BA 777 glider into Heathrow.
The A330 was caused by a maintenance error when the technician installed an L shaped fuel pipe the wrong way round, causing it to chafe on an adjacent hydraulic pipe.
The B777 lead to a re-designed fuel/oil heat exchanger.