The cargo bay request consoles aren't visible from the entry area.  Still, this could easily happen with other request consoles - particularly medbay, and the department sec consoles.  I don't consider it a problem, though.  It's a case of NanoTrasen technology being amusingly dumb, and the message itself is still on the console to be read.  It also only happens if the sending console has been hacked, so technically it's outside the (in-universe) design spec.