There's nothing interesting about people continually trying to mitigate their buyer's remorse with non-examples of when it's useful.
Make a Bravura if you want, but evasion down procs are virtually never beneficial, defense down procs are going to be resisted more often than not, and the -DT does not bypass any caps, and is therefor not useful for any prepared player.
Well on vacation so responding on my iPhone
If you look at my original post I specifically reference def down as the main benefit. The evasion down generally does not come into play.
I have not particularly noticed def down being resisted on ADL, Odinv2 or legion. Of course I am sure you have plenty of experience with it. In my experience I have seen consistently higher WS by both myself and others AFTER I MT. I guess I should keep specific track but depending on buffs the increase is noticible (actually now I am interested I will have to keep better track wonder if there is a way to have parse pick up which WS are after my first MT)
We generally run 5 to 7 Heavy DD just depends on the specific event strategy. In general I run 2-4% behind the top DD which is normally a rag dark. The only exception being when I 2 hour on ADL and a few particularly rough AoE spamming legions, where the prolonged use of DT sets gives me an edge.
I notice some posts above about how "DT macros are hard." the point is that a bravura war can cap DT without significantly impacting tp set. This means that in a PD Zerg u can add a 6th melee DD who is not likely to be one shotted and is still in capped haste.
A few additional points. MT at 99 is a solid WS. I have found only when heavily buffed is upheaval better.
Outside of VW 40 acc is significant
Finnally, any idiot can see that ukon or rag will win the parse. But you make the leap that 2-4% more DMG by one member of the alliance means that OMFG bravura is a waste of Gil. I personally believe that the def down alone is worth it to an ls. I am sure some one could math it out to confirm.