In my opinion, crew morale system fix is needed to fully enjoy SH5. It looks like game designers planned to make morale issues key factor in SH5 gameplay. Whether they havent finished the idea or simply failed to do it - I dont know. However I cant imagine tension in SH5 (and any other submarine simulation) without fixing crew morale system and its impact on crew's capabilities and behaviour.
As for me, the original Ubisoft's idea of crew morale simulation was exellent thing. I would like to play sailors and officers, not the filingless biological gears nad valves. Only then I could feel myself like the captain. Its sad that game designers havent finished this aspect of SH5. All those wasted special abilities, poor dialogs
Good morale system alone would make hunting so much more exciting!