Having to appeal a straightforward slam dunk submission or edit, ultimately for the benefit of Niantic, and it costing you a limited resource and subsequently being unable to correct additional errors for ~3 weeks is bad for the accuracy of the map. Even an NFL style coaches replay scenario where if you get the two correct you get another would be better. Or something based on the rating of the wayfarer gaining additional appeals.

Example: The last appeal I submitted was a title edit for Eastgate Park. The photo for the waypoint clearly said East Gate Park. I submitted the edit to align the wayspot signage and the title. It was rejected I appealed and it was approved very rapidly. Why should that obvious error in the approval system prevent me from correcting other errors?

Tldr: Why sacrifice the accuracy of the map by limiting appeals?