Yes, feedback authors get about potential content warnings is always a good thing, especially for horror where one person’s “ooh spooky horror trope” might unexpectedly invoke a personal sore-spot/sad memory for someone else, especially when describing violence, trauma, or death.
Content warnings are not a call to edit or censor your work - quite the opposite: they’re designed so that potential triggering content can stay in your story and anyone who is sensitive to it has the opportunity to understand what they’re getting into beforehand.