That certainly seems to be the case and it occurred to me too. But you can't fake a death and hide it forever.
With the aid of every branch of the Deep State creating a fake person using a well paid actress seems plausible to me.
And if the desired result is achieved and all-out incarcerations and crack-down occur who would be left to ferret out the facts? The crime would be hidden by the chaos.
Do you know if there were any interviews with her husband? If there were I don't remember seeing one.