I'm not about to read all 40 odd pages of the thread but did anyone else try the above? Was this followed up at all as this is very important as the random repetitions would indicate no hidden code.
People are unfortunately prone to seeing patterns where there are non where as a machine/software would find the patterns.
I guess that Morse code (especially which has been passed through a phase shifter) would appear random to a machine. I don't think that relying on heuristic software to detect patterns is any more dependable than the human ear.
It took me several attempts to hear it for myself, I didn't believe it initially in fact, but when I did I was sold on the idea that the human ear (and eye) is far superior to any analytical software. YMMV.