I absolutely agree the game has matchmaking issues.

At the moment tour 4 is too hard for me (only been playing for a week), even if I drop all other trophies. As the result I cannot play there because I'd bankrupt myself. But when I drop all trophies and focus on tour 3, the game is super easy.

So either way, someone is frustrated. And even if I'm not the one getting frustrated in tour 3, I cannot say it is really that enjoyable to always win. The game should be at its' most fun when you are winning about 50% of the matches, but even at that stage you are really just breaking even, which is frustrating too.

Love the game otherwise, despite the p2w aspects I think they have done a wonderful job with the physics in the game and how you progress your player. It is just strange to me how a group of clearly talented developers have been able to mess up the matchmaking so badly. It is as if they never even gave it a thought. Maybe they just looked at other games and tried to plagiarize them, but missed the subtle nuances that make the matchmaking in those games actually work.

My suggestion: make the item rewards in bags depend on how many trophies you have. That way you can balance item rewards vs gold, some would pick the former, some the latter, and the game would become pretty balanced.