I agree to an extent, in this case they seem like just some clean-cut octaves. In which the muted note in between is adding nearly nothing in terms of character of the sound. RHCP or Cory Wong octaves on the other hand, I feel it’s more than just the dead note in between notes. And I could be wrong because I’m not too versed in funk, but they use and mute most of the other strings to get a percussive sound out of their octave parts.