I was going through the close review queue, I saw the question Satellite is brought to the earth’s surface, it hits the earth with a velocity of 4 km/s - Determine the work done by friction [on hold] and voted to close as homework. However, before doing so, I saw the close reason "I'm voting to close this question as off-topic because 'Ive subtracted the values I got, but it says the answer is wrong'".
How is this an actual close reason? Would the person who posted that close reason explain their thinking, and/or someone explain if this type of more vague close reason is okay?