Thanks for the feedback!
Yeah, right now the game is very easy, especially the boss. For the goals of the class, we wanted to tune the balance so anybody of any skill level could reach the end in like, 10 minutes. Now that the class is over, and more skilled players are playing, I think it makes sense to make the game a bit harder.
Later tonight (hopefully) I'm going to write a quick dev log update pretty much going over my plans for the future, but the tldr is I plan on making it a bit harder and more engaging for players (especially adding a bit more difficulty to the boss lol).
Again, I really appreciate the critique, you gave a lot of actionable/insightful feedback on improvements and that's super great to hear!