Like “Richard” has any evidence that any rifle was ever hidden in any bag.
If anything, the clutter on the 6th floor would assist in hiding the bag. No one would have found a rifle since it was hidden in a bag. There was some risk inherent in assassinating the president. For Oswald, that included bringing the rifle to the TSBD and hiding it somewhere that morning. No matter where he stashed his bag/rifle there was some chance of discovery. That risk would not be limited to the 6th floor as you stupidly suggest.
Mr "Smith's" reply is simply another attempt to prop up the official LBJ approved story, and divert attention away from the fact that Lee Oswald said that he saw Jarman and Norman walk by as he was sitting in the Domino Room at 12:27.