If it was just one test, sure. But if they're spinning these up continuously with new models on tens of thousands of GPUs, air gapping becomes impractical. I would mostly fault them on having no guardrails at all. They should have a monitor/external harness that looks for successful access to external networks then stop it there. They may as well let the models test their own networks for vulnerabilities. That's going to be really important to have going forward.