Grant capture 'science'?
I see several glaring flaws in this from the scientific perspective, the most prominent being:
[1] barking is only one of many ways dogs express themselves, many of which are indeed silent behaviours that would all need to be assessed;
[2] we have no real idea of what goes on in dogs' minds except inferentially and in the crudest terms ("playfulness or aggression"). I doubt anyone would be interested in researching human responses at that primitive level;
[3] the sample is tiny -- "With the human speech model Wav2Vec2, researchers built a dataset of dog vocalizations recorded from 74 dogs of varying breed, age and sex, in a variety of contexts".
I have a horrible feeling that this could turn out to be a "what can we apply AI to so we can land a research grant" proposal.