Yeah... basically.
The Enola Gay made it back to base without doing a voluntary nosedive into the Pacific!
Nuclear bombers played a vital role in the 20th century... too vital to be ignored, IMHO.
It just seems like the "use-once-and-destroy" method seems a little unimaginative. Bombers do have limited range, so it's not like the global-reach of an ICBM, plus GeoModder's right... it does have a chance to be shot down by a SAM unit, afterall.
Perhaps once BTS comes out, the Atom Bomb could use the scaled down damage characteristics of the Tactical Nuke?