There are no plans to add this currently.
Also voicing your opinion and how you would like it or if you are unhappy with the current implementation is fine.
But calling this “trolling the player” is way too extreme of a exaggeration.
I think it’s absolutely bad for the game if they would add either FP or LP to the loot filter.
It will always will bring us one step closer to not look at loot at all and just pick items up blindly.
The function of a loot filter is not to make decisions for you, what to pick up and what not to pick up.
The loot filter is for reducing the amount of visible items to a manageable level. You are still supposed to look at loot and decide if you want to keep and item or not.