big ask for no interview - Team Leader komoot Employee Review

I am so disappointed by this - it's the exact thing you hear of good recruiters saying is a red flag. They make you do a SIX month detailed plan for how you would solve a challenge, it is completely unpaid, takes days, to not let you through to the interview stage or even meet anyone at the company whatsoever -- not even the talent team who I assume is grading these. The feedback I received was petty and showed they didn't read everything fully as what they said was missing was in fact flagged and included in my response.