We see lots of weird things in fiction. I don’t love it all, but who cares? Authors write what they want, publishers publish what they choose, and readers bloody well read whatever piques their fancy.
So this reader is going to exercise her constitutionally mandated right to express her unhappiness over a certain literary trend. Actually, it’s more than a trend, it’s a flea infestation, pervading all corners of the house once that single step released the pupae from the egg. The pupa was Pride and Prejudice and Zombies (PPaZ), the very deliberate footfall was Quirk Classics, and the spawn is the new paranormal-literary-historical mash-up that, frankly, could not die a moment too soon for me.
Human nature is partly to blame, I suppose. Our consumer society is built around crazes; unknown forces decide, merchandisers provide, and consumers gorge, until the next hot thing comes around six months later. The problem is when there’s a gap between what publishers think we want, and what we actually want; hence many (many many many) complaints about the fact that they just don’t listen.