Is there any protocols to identify what sort of document MS-408 is?

[Mauro]

Interesting... a colang should look like a real lang, but with less of the apparent randomness that builds up with natural langs over the centuries. So, more consistent structure,

I agree on this, well said. 

 less entropy... yes, makes sense, thanks.

About entropies I'm not so sure. Lower-than-usual entropy is of course possible but I'd rather measure it on real conlangs before saying anything about it.