They did, before the two crashes there were other incidents (e.g. a Lion Air flight just the days prior to the one that crashed where a third pilot was in the c

They did, before the two crashes there were other incidents (e.g. a Lion Air flight just the days prior to the one that crashed where a third pilot was in the cabin by accident and his quick thinking saved the plane: https://www.cnbc.com/2019/03/20/lion-air-boeing-737-saved-by-off-duty-pilot-a-day-before-crash-report.html https://www.cnbc.com/2019/03/20/lion-air-boeing-737-saved-by... )