The Horror genre needs a revamp in terms of definition and perhaps instituting different sub-genres to it. As it is, the one classic "Horror" title isn't ever going to cover it all, and each horror film's ratings and acceptance will always be low and divided.
Take The Black Phone for example. It is excellently acted by almost every one of the actors, the 70's feel to it was perfection, the story was good, it was suspenseful, it had dark moments and a dark subject matter, it had mostly interesting characters. Granted, some of the characters were not as fleshed-out or utilized as much as others, but the pacing was great, there were supernatural elements and some gore. It had pretty much all the right ingredients for a film that would be marketed as a "horror" flick... and yet, we see a disconnect somewhere in how the film was perceived.
Until we allot some distinct titles such as Gory Horror or Dramatic Horror, Fantasy Horror, etc., GOOD films like The Black Phone, will be lost in a sea of horror fans, each looking for something different.