CNN is basically saying the COUP failed????
No. They are saying (opining mostly) that the issue is unsettled. CNN did come out and identify Turkish National Intelligence Service as the entity making the report that the coup has been put down.
The MIT was destroyed by air strike in the 2016 coup
"MIT" is the acronym for The National Intelligence Organization (Turkish: Milli Istihbarat Teskilati, MIT). Wiki says that this outfit has very little military component.
National Intelligence Organization (Turkey) - Wikipedia