I don't know but if I had to guess, it's because they have no reason to
   get into more specific and lesser charges until/unless it looks like he
   might be coming to trial.
   Then again, it's not the first time a slide has been
   challenged: [1]http://www.reuters.com/article/2014/12/11/us-germany-usa
   -spying-idUSKBN0JP1QG20141211?irpc=932

     Germany's top public prosecutor said an investigation into suspected
     tapping of Chancellor Angela Merkel's mobile phone by U.S. spies had
     so far failed to find any concrete evidence.
     Revelations by former National Security Agency employee Edward
     Snowden that Washington carried out large-scale electronic espionage
     in Germany provoked widespread outrage -- particularly the
     allegation that the NSA had bugged Merkel's phone.
     Harald Range launched an official investigation in June, believing
     there was enough preliminary evidence to show unknown U.S.
     intelligence officers had tapped the phone, although there was not
     enough clarity on the issue to bring charges.
     On Wednesday he said however, "the document presented in public as
     proof of an actual tapping of the mobile phone is not an authentic
     surveillance order by the NSA. It does not come from the NSA
     database.
     "There is no proof at the moment which could lead to charges that
     Chancellor Merkel's phone connection data was collected or her calls
     tapped."
     Range said neither a reporter for German news magazine Spiegel who
     presented the document, nor Germany's BND foreign intelligence
     agency, nor Snowden had provided further details to his office.

   From the German prosecutor, not an NSA spokesperson.
   Plus, as I said in the post - Snowden didn't see all the materials he
   leaked. If the document was forged and not legitimate or a mockup
   produced by GCHQ for proposal purposes, etc., it could have been
   modified or fabricated after Snowden gave up his trove.
   Did you read the entire post, or just decide that "If he's not a
   Snowden-ite, he's probably a liar or a bad man"??
   Georgi Guninski [2]guninski@guninski.com
   Fri Oct 9 09:49:45 EDT 2015

     Why they don't charge Snowden for fabricating/photoshoping?

References

   1. http://www.reuters.com/article/2014/12/11/us-germany-usa-spying-idUSKBN0JP1QG20141211?irpc=932
   2. mailto:guninski@guninski.com?Subject=Re: The GCHQ Cryptome slide could be a mockup/disinfo&In-Reply-To=<20151009134945.GA2643@sivokote.iziade.m$>