I disagree, I think 'Bug' is a risk-shedding weasel-word. It's meant to shift blame away from the technology and its creator (multibillion dollar AI companies etc) in a way that doesn't hold those actors accountable or responsible for the outcomes. In any other software it would be an error, regression, hallucination. And in a human process it would be at ~least something someone would call 'bullshit'.