I get it, grunts and growls cut down on VA costs. However, to tell a story like this you should probably have voice actors. SN has voice actors, AS has voice actors, why can't this game? I wouldn't care if it was cutscene exclusive but it'd give better explanation to people not familiar with the HN lore. Like imagine the ending scene but with Neighbor weakily going 'Help, Son.' when he's under the bird statue, that'd add another extra tug to people's heart strings.
...also what kind of police officer angrily grunts and goes 'bwoah' when trying to get you out of a crime scene?
This doesn't need to be a focus right at the moment but it'd enhance the story.