Anyway dont be discouraged by rejection.
Thats how community review works. Mistake can happened because its impossible for niantic to handle all submission so they share it to community. Whoever reject this probably comes from your country or people who put bonus location there.
If you are sure your nomination is correct, you can always ask advice to improve it again here. Personally i also have jogging route marker nomination that i find it hard to get approved by the community because of its considered not distinct. But i will try to improve the nomination so it will have better chance to be accepted