Ratios that extreme would probably only be seen in cases where the source video was really poorly compressed anyway, which is what the commenter probably experienced. I’ve had that happen before too. Expect more like half the size compared to H264, which is still pretty good
It’s useful for security researchers to collect and analyze what the newest attack bots are trying to do, in order to learn how to defend against it and study the malware they drop. There are some cool videos on YouTube about decompiling malware dropped by the bots.