Although you still get less money for the trophies after beating it it seems.
I created a new file to start from scratch. It seems trophies have just dropped in reward across the board. To the point at which it's actually impossible to turn a profit with a heavier preparation load-out. It also makes bet on the boss kinda useless. Before, bet on the boss had a net profit of 300-475 gold. Now it's 100-200 net gold profit, less than half of what is was it was granting before.
Now i get the burning locations on the worldmap as well, wondering what that's about.
I don't know; I've tried visiting these locations but I haven't noticed anything special. In the case of the Rock Garden, all I saw was a third boss, which is apparently what's happening with many of the hard levels.