Yeah, that's too big a stretch.
"Gruff and unfriendly" neighbors should be pictured as the opposite of
"warm, social" neighbors.
Just think of neighbors that are NOT taking the time to say hi to each other. Brusque. Aloof. Someone who just ignored his neighbors, never made an attempt to meet them or socialized, and just walked briskly into his house would be described as "gruff and unfriendly".
Malice is the desire to see badness visited upon someone.
Gruff and unfriendly is just the desire to be left alone.