Old school antiviruses also has heuristics so they could make the same claim. It wouldn't be true in practice because malware authors would just test their mal

Old school antiviruses also has heuristics so they could make the same claim. It wouldn't be true in practice because malware authors would just test their malware against common antiviruses and tweak it before shipping so that the heuristics don't pick it up. Just like these researches did against their "AI". AI really just meaning "generated heuristics", doesn't it? If it becomes a problem for malware authors they will make their own "AI" obfuscation generators soon if they haven't already. They still have the advantage since the "AI" antivirus runs locally, so they can just run tests against it until it doesn't detect, without having to send a large amount of malware samples to the defenders.