Why not make the zones more alive without LS?
“Players farm bosses in train in an area (frostgorge…cough!). Anet nerf drops = fail cause players feel like they been punished?”
“I mean is interact with players and stop force us to do things with candy!”
You seem to have got this back to front. Champion purses were created because players complained that champions were not rewarding enough and there was no incentive for players exploring the open world to fight them. So champion purses were added and some players immediately decided to make it a candy fest by using massive raid groups to tackle group content. They exploited the lack of scaling to milk the most candy in the least time.
The scaling down of the champion rewards is just a correction of a design mistake. It is not punishing anyone. If anyone was punishing themselves by playing boring content for candy it was their own fault. I’m guessing many players will not ‘enjoy’ it now the candy has gone, the champ trains will go elsewhere, and the game will return back to a proper state (hopefully).