this is basically nearly every parking lot and the amenity or infrastructure it's supposed to serve on account of cars are a lot bigger than humans and the average ridership is like 1,2 - 1,5 people / car depending on where you are.

I used to work at a place where my colleagues car got more space alloted to it than our shared office. If we factor in this was a multi-story-building we got about 1/3 of space for two people than 1 car

Well, cars need a proper, QUIET, place to socialize otherwise they might get aggressive.

It looks like it's a boat launch. Google maps still shows the pre-renovation version, and it looks like the parking lot actually got smaller overall (that bit in the northwest that shows a paved trail in the renovated version was dirt/gravel and had road access and tire tracks, so it looks like that was another parking area) and the pier for the boat launch was rebuilt. That's why it has those weird, very long parking spots on one side: they're for cars with boat trailers.

It's barely even a park, I could probably throw a rock across it.

It may make sense if it’s a small, potentially remote, area with a very nice view. I’m guessing it’s an area where tourists drive in, take a picture of whatever that park is facing, and leave.