>I suspect there might have been OTHER things that were amiss.
Most probably. Though no one would notice. Even AuntPam who later was escorted through the house and asked to point out 'anything that was out of place' would still have been under tremendous emotional stree and would not be familiar with everything anyway.
Even minor things like unplugging a lamp cord or moving an ashtray would be noticeable only to the Ramseys and neither of them ever went back there.
Certainly these "other things that were amiss" would indicate the crime was not directed at JonBenet.