"We should distinguish the person from the deed"

No, we shouldn't. Research fraud is committed by people, who must be held accountable. In this specific case, if the issues had truly been accidental, the author's would have responded and revised their paper. They did not, ergo their false claims were likely deliberate.

That the school and the journal show no interest - equally bad, and deserving of public shaming.

Of course, this is also a consequence of "publish or perish."