Guys, let's totally argue trivial points and the most specific meanings of vague one-liners that were most likely mistranslated anyway and would be too infeasible to actually change for the sake of tampering with canon and the series timeline!
That said, considering IGA's at the helm, he could've just rewrote the minor details in Dracula XX. But he didn't. And besides, with the bad rep DXX gets outside of the fandom, it would've gotten more complaints than praise (unlike surefire hits like SotN and RoB). Obviously, he came to the conclusion that there was no point to even considering the idea.