Anything is possible. The question is, is there any good reason to believe that it's true?
I didn't say it was true. I posted it was possible in response to someone who claimed he had 'the only other logical explanation'
which definitely isn't true.
If the bag and blanket were forensically analysed before being photographed together and touching on a table then we have reason to consider it as true. If they were not forensically analysed by that point then no we don't have good reason. Simple. Although time stamping photos isn't necessarily so simple.
Is there any good reason to believe the FBI would be so incompetent?