Actually I think he's geting confused with the Consitution & Sovereign classes, for they have that weakness. I think the fact that the Galaxy-class is one of the few Starfleet designs with phaser banks arranged to reduce the blindspots is something most ignore or forget. Come to think of it, the only time I've seen it accuartly modeled is in the ST:TNG PC adventure game.
--Rod.H
"Galor-class bearing 098, mark 30" "Fire saucer dorsal, and port pylon arrays!"
--Rod.H
"Galor-class bearing 098, mark 30" "Fire saucer dorsal, and port pylon arrays!"