I imagine that is because they don't want to have a lawsuit brought against them... I just checked and although these are not from the three places named in the AU lawsuit, this is probably an attempt to make themself look as though they are no longer promoting/selling the PS JailBreak mods so they don't become the next target.
that's great that it works with recent games but I wonder how long before Sony makes an update to block this. Hopefully if that ever comes around the scene or the guys who created it comes with a workaround