Doesn't this violate the license of the license? The very first paragraph says that "changing it is not allowed" – or "no one can change it" in this changed version.

And calling it "GNU" and attributing it (only) to the Free Software Foundation, when they didn't publish this modified version, seems inappropriate. I don't know if the FSF have trademarks on these terms, but this is the kind of confusion trademarks are meant to protect against.

As a final nitpick, I believe (but I might be wrong about this) the phrase "General Public License" is intended to mean a license for the general public, so changing "General" to "Justified" wouldn't make sense in that case (as it would mean that the public is justified, not the license).

(Neat trick nevertheless.)