

Quoting from the GitHub’s page:
The exploit is a race condition that requires precise timing and several other conditions to be met for it to trigger successfully. As such it can take a while for that to happen.
Which means that, sometimes, you run the code but it simply fails. When it happens, you can turn off the console and try again.
You should re-read the discussion, because I’m pretty positive you didn’t even get the topic.
We are talking about being able to play pirated games and homebrew apps on the X360. Of course that doesn’t happen in the wild. Unless you think that I woke up one day with a modded PS1.