Yep. You would think with as big a company as they are and as many ships as they own, that they would have a plan in place. It's not like it's never happened before.
What plan could they possibly have in place for an engine room fire that disabled all typically required functions? Other than get the ship safely to shore and ensure the passengers are compensated and able to return home as easily as possible.
I am floored that these huge ships are not equipped with a separate genset in another part of the ship that could at least power basic services such as emergency lighting, waste systems and maybe some refrigeration units. This would have at least maid the tow trip bearable.