Easter Egg on Mainland

I didn't discover this Easter Egg on my own. I read about it elsewhere outside of SL. It was a very short 10 sec .gif which I paused and wrote down the coordinates then plugged it into the world map.
There was more information from the source; however, I thought it best to stay away from speculation, especially regarding as to why that Official Statement from LL published.
These two prims are in a G rated area on Mainland.
I did derender some recognisable objects around the area.
This location is not near a LL location.
I found it curious as to how the original source found or knew about these two prims. As well as knowing who was the uploader of the texture. It's the type of thing that one wouldn't be able to find on their own if they didn't have any help.