I guess there are humans behind the review process. One noticed an issue, the other didn’t. One could open your map, the other couldn’t. If you are 100% sure you meet all the criteria and your asset works perfectly, you could try to send it again for review in the hopes that another person will review it.
Generally yes, Fab review team is very inconsistent and needs major improvements because there are a lot of broken, low quality, ripped, no documentation assets released regularly.