Guess "situational" isn't in your vocabulary? Apparently neither is the '/' usage meaning and/or. Already said something about pdt/mdt sets. Aggressor can help on the dismal accuracy rate of heavy strike where using it is applicable to avoid excessive TP feed, or other spells meet high end mitigation lowering output in comparison. Either that or you are just seeking to side-step any chance of mute, also rare but does happen on a few fights. Also I don't know how this had anything to do with Abyssea, especially since in there blu's melee is rather exceptional so the point of MM is moot.
Not sure where you are getting that blu's damage output isn't that great from a melee stand-point. Aside from slashing resistant mobs or VWNM melee isn't an issue as it is, especially with an Almace. Can't compare it to a 2hander, that is rather asinine since it is a completely different class of weapon, same for ranged attackers, not to mention blu has always been split percentages between melee and spell damage placing it apart from other 1handers that have other options of increasing their own damage output via job abilities. Then there is the ability to self skill chain to also make up for lack of melee deficiencies.
I don't have a problem, it is called "what if" reasoning. Stand back, asses, and make rational conclusions based on what if scenarios. Blu is a versatile job that fits niche spots, but relies on combination of spell and melee dmg output. In the recent year this has changed from spell primary to melee primary again, but still relies on spell output to make up the difference other DD classes pull ahead with.
Sorry if stating reasons as to why blu wouldn't get DWIII has somehow offended your ego or pride as a blu, but much like other jobs potentially not getting what they want it is based of a reasoning of over all balance rather than performance of one specific job. Perfect example is Heavy Strike; in the testing phase it was huge change in how well blu could perform, breaking numbers that were not easily attainable prior and incredible benefits. Now look at it, low accuracy, lowered output...not much better than other options. I'm a pessimist, even jobs I love to play will see the same scrutiny as jobs I don't when expecting something more. That is just how I am. If blu is going to get it then so should thf, cause that would be completely rational so thf can do the same thing, right? And yes, that does have merit to the topic since it is a matter of balance, not single job enhancements.