I think the franchise will continue to have silly storylines if Capcom knows people are so accepting of the Tim Burton, and Dracula type BS that plagued 7 and Village (which I consider to be two of the worst mainline entries).
I don't see why they shouldn't. Apart from the fact that these are high-quality games, Bram Stoker's Dracula and the Biohazard series have always had a ton of conceptual similarities, because even the original first game was inspired by the idea of a haunted house and a manga about vampires.
The central theme of these games has always been biohazard, and if you've read Stoker's book, you know that Dracula's goal was exponential infection to turn people around the world into a species called nosferatu (this word derives from a Greek word meaning "disease-bearing"). And the animals in which Dracula shifted, such as the rat, bat, wolf, and so on, are known as disease carriers.
Even in terms of storytelling, the book and the games are similar, because the whole novel is a compilation of diaries, letters, newspaper articles, and so on.
And Spencer's mansion wasn't just a house, but was likened to a castle with its interiors, any plate armour and so on. The owner himself is a Gothic villain of noble origin who dreamed of becoming an immortal god.
There is
no objective reason why a character who might resemble Count Dracula wouldn't fit into the BIO universe, especially when you already have an immortal aristocrat who was literally nicknamed Nosferatu.
People so often talk about how silly vampires and werewolves are for this series, despite the common denominator in the form of disease transmission, forgetting the simple fact that zombies also have a paranormal origin. They weren't always the result of a virus or bacteria, and at the time Bio Hazard came out, the black magic explanation was still popular.
The criticism based on the incompatibility of motives and images is completely irrational, and it's ironic that you mentioned the Silent Hill series, because when Silent Hill 2 came out, a lot of people hated it to the core because of its distinctness. So much so that the negativity affected the direction of Silent Hill 3.