The only problem with believing this particular source is that it is controlled by Erdogan.
This source is Turkish, and is effectively controlled by Erdogan.
They would not run with this if Erdogan was not planning to make use of it.
After the Gulenists are purged, I was wondering what his next target would be. This might be used to frame another opposition political party, to justify a big policy shift (like invading Syria), or to begin systematically demonizing the US for the long term, to turn the public against America.