You still don't get the point my dude.
I want more variety and I want more choice. I want some trinkets to be good for Single target and I want some trinkets to be good at AOE.
Example:
Harlan's Loaded Dice is a really good trinket. It's does amazing in AOE situations and is also really good on Single Target. It's is much much better than My'das in all situations. What I'm suggesting is to make (for example) Harlan's Loaded Dice better on AOE but My'das better on Single Target. So on Fortified weeks you might choose trinket like Harlan's Loaded Dice and on Tyrannical weeks you might choose My'das.
Those to trinkets are just examples of a generel concept.
If you keep trinkets like My'das to be bad at every aspect of the game, then the trinket will never be chosen over trinkets like Harlan's Loaded Dice and therefore My'das will in the end be pointless.
If all trinkets in the game at good at something, then all trinkets can be chosen for certain content and we will end up with more options in the end. By having trinkets which are bad at everything you actually reduce the viable choices you have. I'm not sure if you get that?
I'm not saying to streamlines trinket, I'm just saying to make all trinket good at something.
And notice that I'm not saying any trinkets should be "the best". I'm just saying that if a trinket is in the game then it should have some kind of purpose.
One trinket should not be the best at both single target and AOE. Because that's how you get "cookie cutter" setups.
Just like one talent should not be the best at both Single target and AOE. This is a design concept Blizzard are already following so why not also do it with trinkets. It make sense and gives the players more options.
PS. What you're describing is the slot machine. Because what you want is to have very good trinkets and very bad trinkets. So you either win or lose with your suggestion. I don't agree with that