Provided there is no runback. Say it was intercepted at the 5 yard line and the DB runs it back to the 50 or whereever. That gives the intercepting team a distinct advantage. It shortens the field drastically.
So what's your point - don't ever throw long? Any pass can be intercepted and returned for a TD. For example, an out pattern is a much more difficult throw for a QB and has a greater chance for a pick 6.
Sunday, the Falcons were rarely blitzing and playing a 2 deep zone. Not very conducive to throwing deep patterns.
Other teams will blitz more and play their CBs tighter and take more risks. With a set of speed receivers like Knox, Williams and Hester the Bears would be foolish not to send them deep when the situation is right.
Or do you have this old philosophy: "Three things can happen when you put a ball in the air -- and two of them are bad."