We got Lorrick before xpc, now it's Czerka's works. The Dreadmasters are also good at those experiments, Sector X and a few ops use their projects as bosses.

I think it's because bosses in FP/Ops have to be dangerous enough to give the character a reason to fight them, but unimportant enough in order to not mess with the rest of the lore (since they are usually not present in other sources outside swtor)