You're a group of 10 people? Wow, I hope the task distributions and group meeting weren't too chaotic for you. Though, I really like this game. It reminds me of those super original Flash games back in the day.
On the other hand, the action was quite lacking until the boss enemy showed up. I just spam clicked/spawned a few units at the start and sat back through most of the opening.
Glad you liked it! We had a bit of experience with bigger teams from previous jams and things fell pretty well into place.
The difficulty ended up a bit too much on the easy side, yes. That was a bit of an over-correction from how it was at the original deadline. There was also supposed to be a hard and endless mode, but there was a show stopping bug regarding that so we didn't end up making those available in the final version.
Balancing is definitely what I'd tweak a bit more given another hour or so of dev time.
