So what you're saying is by removing CDs off the cruiser we'd be making it a vessel that would require team work to make its use most effective? Exactly what those of us asking for the CD to be removed desire. Not sure how making it a vessel that requires team work makes it redundant or breaks it.
Your example of battlecruisers attacking transports is rather moot. You fly up in your cruiser and defend the trader. Pew pew the battlecruiser. It either starts to fight you, continues on the trader at which point you're shooting a duck, or turns to flee. If it flees you've won the battle. You saved the trader.
The only reason you'd desire a CD at that point is to prevent it from fleeing for the blue message. If that is the case, get a buddy.