That some interesting "logic." Why would Oswald's prints not being on a Dr. Pepper bottle that belonged to someone else have preclude his presence in the SN? Oswald's fingerprints were all over the SN boxes.
Oswald's fingerprints were all over the SN boxes. Massive exaggeration, as per usual. But so what?
Oswald worked on that floor and handled boxes every day. Besides there were other prints, likely of co-workers and police officers, on those boxes, which were being moved around because of the work that was being done to the floor. Oswald's prints being anywhere on the 6th floor are meaningless and of no real evidentiary value.