The park design should have accounted for the crosswalk on the top intersection from the get go or, alternatively, once the people made their desire for a path there obvious. The park isn't some sentient thing with its own opinion, it got made by people with 2 main functions: enhancing the environment and serving as a foot path. It is obviously failing at the second until the designers finally relented and put a proper path down to the crosswalk.

Note: you will always get people not using the path but when it's enough people to form a permanent trail then the park design obviously did not account for a rather popular destination and should be revised.

Green spaces: Just for viewing.

What kind of dystopian hellscape do you want the world to be, exactly?

weren't supposed to

As if walking on grass in an emtpy park is comparable to driving a red light on a busy street.

This has to be a joke right? Are you actually mad about desire paths?