If your analysis is correct, then ISIS would be accurate in saying it was their action, but just not quite accurate in the details of who did it.
Interesting that they would purposely obfuscate on the actor/actors.
More fun for them to laugh at the FBI and watch them run around like chooks with their heads cut off, trying to cover up what really happened.
This wouldn’t be the first time Paddock was instrumental in putting a spoke in their terrorism plans.
The moment that prosecutor made it public that one of the perps had been communicating with an undercover agent, they would have made it a top priority to identify and neutralize him.
That agent was probably Paddock.