I can understand why that response would make you angry. However, this decision is not clearly wrong. Usually the rejections that are overturned after posting here are demonstrably incorrect, which would be difficult to prove for an opinion.
I do understand that you want Niantic to look at this again, not just opinions from forum members, but it is rare for them to actually comment on a post like this. Usually the OP will quietly get a new email with a different decision if they agree with you that the appeal decision was wrong.
The appeal statement does say you can resubmit.
I am one of those people who have to be really convinced for a view bench. Being frank, that just looks like a place you can sit at the park to me. For a view bench, I expect a view like these: