They discontinued the ability to appeal in the Wayfarer Help Chat. The link you shared should be modified to indicate that.
Help chat is still the correct way to do a location edit.
https://wayfarer.scopely.com/new/help
Alternatively, the form at Request modification or removal of a PokéStop or Gym — Pokémon GO can be used to create an email chain if losing the browser history for the help chat is an issue.
Since this request has been posted on the forum, staff may action it from here.