KDY's schtick might be murderwedges - but that doesn't mean every KDY design has to be a murderwedge, or vice versa (every murderwedge has to be a KDY design)
Similar principle applies to Corellian Engineering and its own "design style".
The Lancer is KDY:
http://starwars.wikia.com/wiki/Lancer-class_frigate/Legends
and isn't very murderwedge-ish. Nor is the Star Galleon.
Edited by Ironlord