I’m skeptical of this. This sounds similar to the way Koko “learned” sign language.
While this video is long, it explains the controversy very well: https://youtu.be/e7wFotDKEF4
While this video is long, it explains the controversy very well: https://youtu.be/e7wFotDKEF4
But look at more of Bunny's videos. Some of the interpretations are fanciful (a pet peeve of mine is the "love you" interactions where there's little reason to think the "love you" means more than "I want attention"), but there are enough of fairly complex interactions that I think it's unreasonable to dismiss it entirely.
And then it would still suffer from potential human over-interpretation, finding meaning where there isn't, as described in the Koko video you linked.