If I had to guess it's because the doff system can't take into account the new magazine mechanic and it wasn't working right anyway. I'd have to parse it, but I'm pretty sure my PWOs were sitting on their hands with my omega torpedo equipped. I kinda had a hunch, that's why asked in another thread.
Use the omega torpedo and the romulan torpedo. I don't have the romulan torpedo yet (3 more days) but I've heard the two together do very well.
The breen cluster build is designed to get the CD on the cluster torpedo down as much as possible. Your other torpedos arn't really there for the damage, just to fire as fast as you can, so you have greater chances procing your projectile boffs, and lowering the CD on the breen cluster torpedo. Great thing about the torpedo boat, is you get that cluster hitting every 15-20 seconds, plus you can jack your AUX up all the way, making your sci abilities hit like a truck. All the will you are crapping torpedos every second or so, with that breen cluster hitting for minimum 20k every 15-25 seconds or so. Especially on a intrepid retro, its a great build. Being able to run that ship with full aux, its an absolute monster to pop.....
Cause people were apparently using it to create romulan torpedo spam. In STFs, a few times I saw a constant stream of plasma torpedoes heading toward a gateway or cube. PvE is all fine and good to have these little tricks that harm no one IMO. However, in PvP it causes immense grief. Its kind of hard to deal with 20 plasma torpedoes coming toward you.