Why be misleading? The directors are clearly wanting him to be a scapegoat. Just get on the zoom call and say you've never done pen testing, and your director lied to them. Also look for another job, this one has a short lifespan remaining one way or another
You can 100% tell the truth and be misleading. And why should this person put in that effort? The directors will throw them under the bus in an instant, and in fact are probably planning on it.