Overeem losing and Cormier and Cain's refusal to fight each other while Cormier knocks off top contenders didn't leave much choice.
The trilogy between JDS and Cain was more warranted with JDS taking the first one and beating just about everyone else in the division not named Cain, while sparing the Cormier fight against JDS in the case that JDS retook the title.
At LW there were more options. Rematches are not always bad, I am still disappointed we didn't see Machida v. Jones II.
The Sayings of Hár:76
Cattle die, kindred die,
Every man is mortal:
But the good name never dies
Of one who has done well