Thank you.
They could have saved a few bytes or ink and just said: “Because we say so.” or “So it is written, so it shall be done.”
This is one of those cases where logic holds no sway.
Sorry you didn’t take the time to actually read it. You seem to think it needs to be boiled down to a cute catch phrase like “Because we say so” or “So it is written, so it shall be done.” Actually if you feel the need to “save a few bytes of ink” I suppose one could trivialize it to “we do not have the authority”.