(is Maria a Belmont relative too?)
Yeah. In the SNES Dracula X she's Annette's sister, whereas in Rondo she's just a long-lost Belmont relative, hence her powers. I hope I have that right.
As for the Belmont relatives, they had to insert a bit of drama to make PoR a bit more interesting, I guess, in the character development department in regards to Johanthan. Not that it was done entirely well, since his whole inferiority complex became really grating really fast. But it makes sense to a certain degree as to why they wanted to show why not just anybody could pick up the whip and use it, even if they were part Belmont.
And if we go for the "only pure Belmonts aren't killed" we're going for some kind of sexist thing were the only true Belmonts are descendant of male Belmonts only).
I really hope this is just satire on your part, because you'll need like size XXXL stretch pants to fit that stretch of an argument for hidden sexism.
I'm curious about the original intent of the Alucard Spear back when Bloodlines first came out. It's a pretty suprising bit of continuity back then, since Alucard was a bit of a goofball before SotN. Judgment retconned the Lecardes into being Belmont relatives, so it's possible there was orginally a connenction.
Yeah, I really wished it was kept that Eric was a descendent of Alucard. Even PoR hinted towards this, with that promo art of Eric with Alucard's silhouette in the background.
Also good lord was Eric hateable in Judgment. How do you go from suave Spaniard in Bloodlines to Undead Col. Trautman in PoR to whiny prepubescent is anybody's guess.