I'm sorry DnT is a joke compared to what it used to be in WoW, that must be emotionally challenging to handle. Changing a difficulty and finding a different way to kill something are two totally different things. Pretty much the entire raiding community, except for yourselves of coarse (that speaks volumes), voiced their opinion that turning a boss fight difficulty down to get by it nullifies credit for future kills. Not participating in the next progression race just shows your raids lack of confidence in itself to compete for the world firsts.
If you care enough, you can go to our website and view the dates of our kill shots and titles. Most kills fell in the World 3rd/4th range, which I am particularly happy with given our very short raiding schedule due to IRL commitments this past tier.
Good luck with title next week. Saph, carry them baddies!