Most of them were not flyable aircrafts.
If you check carefully Google maps, you will find that being that distribution have been the same during months, many engines or props (C130) were off because of maintenance or overhaul duties.
Find local businesses, view maps and get driving directions in Google Maps.
www.google.com
This cannibalization is usual when air forces cannot enjoy original spare parts. Even in this situation you can see how IRIAF in the TARMAC tried to separe as much as they can the aircrafts, but nothing can be done.
By the way, most of them were destroyed by small bombs (Mikholit) that expose that these attacks were possible because some Hermes 450/900 sneaked inside Irán.
Nowadays with a comprehensive distribution of AD-08 or AD-10 this extensive destruction would be much more challenging for the attackers.