Thanks for the feedback :) It has been noted. I definitely have more plans for the mini-bosses (and bosses) actually! Over time, they will be a bit more dramatic or impactful to gameplay.
It's been a balancing act to ensure that we first get them in there and they become something that is key to ensuring character growth while also not disrupting the flow of the game. The system is about 70% complete and the last 30% will make them more "mini-boss" like haha