Moreover, in history, it was indeed the Miyoshi family that came to beat the Hokitate Family; it's just that the Miyoshi family ended up collapsing on themselves as they fought, otherwise Oda Nobunaga wouldn't have gotten lucky and taken Ise Province so easily.
Ise Province was also a powerful domain producing nearly three hundred thousand koku—not much less than Owari or Minoh… At least for now it's comparable. Owari's fifty thousand koku production would come later, after further development; at present, it's just over three hundred thousand koku, and when Harano first arrived, Owari was even less developed than Ise—at that time, Owari had only about two hundred sixty or seventy thousand koku.
So, Hirata Fujimori can't be blamed for being so cautious; at this point, he really doesn't dare to reduce the annual tribute rashly. At the very least, he must ask for instructions from Kitahata Giyou before making any decision.