I originally tried a very similar concept and it just felt awful to use and was wayyy to punishing with how the boomerangs worked, but I understand the gripe, near the end the biggest considerations I had was having the boomerangs interact with the environment and maybe limit the range to like 300 but still go to cursor to make it a bit more fun
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You'd definitely need to adjust the enemies to make more restrictive boomerang trajectories work; with the enemies' current speed & AI, it'd be a pain to hit anything. But alas, you only have so much time to try and tweak things in a game jam. Kudos for trying out different options and picking what you felt worked