You messed up your quotes.
Government because unlike the 1400s when church was in power and had its armies of templars/palladins, today church has no power. And I wanted to emphasize the war and many people dying to Drac's armies to give a slight nod to cv3.
As for the curse, it's a guess. Iga said that Richter was the last Belmont to be recognised as a true Belmont by the whip before 1999 (hence he's the whip's avatar during the battles), so my guess is his son must have done something abominable enough to cause the whole "belmonts, gtfo and away from the whip" thing, that lasted until 1999.
And during the time when morrises borrowed the whip the Belmonts were searching for a way to cleanse themselves of their ancestor's sins to be deemed worthy to wield the weapon once again.