Sorry. Donald, but I believe you are wrong.
I had some Canon and Nikon raw files and imported both into Camera Raw and default sharpening settings stayed the same; so sharpening data does not appear to come across from either camera. Ditto the raw files from my Panasonic camera.
I also suspect that the reason you don't need to sharpen is that the downsampling algorithms maintain some level of edge sharpness as the size of the image is reduced, this effect is that your image will look sharper. I found the same thing shooting with the D800 and at times I end up unsharpening things slightly after downsizing to counter this.
By the way; nice shot...