Interesting. You're talking about PvP, right? I would expect it to be annoying to other players. But then again, while "fish, fire and (forgot the third one, was it EMP?)" were not used in MP on a gentleman's agreement (at least as far as I've read during one wiki binge), this one was very much in use.
Is the retail Morning Star really as annoying in hands of AI as it's made out to be (note, we're not talking turrets, as they're governed by slightly different rules to main guns), or is that actually a misconception? I know that their firing technique is somewhat artificial, not to mention heavily altered by difficulty. Maybe the solution would be not changing the Morning Star, but making the AI use it more like a human player would?