I disagree.
I had the same idea and downloaded the image. I opened it in Graphic Converter and looked at all the metadata. There is NO (none) EXIF data included in the picture. The only way this could happen is that someone has manually edited the metadata to delete it. The most common way for this data to disappera is editing the picture in photoshop or some other editor. Nearly any camera as default or with custom settings will litter all sorts of identifying information in there.
I also notice that the compression ratio of this image is 1:11. I've never seen a canon camera with that ratio. On this low quality I'd expect 1:17 if it was a Canon camera image which is what mine takes.
At the very least, this is not a camera phone pic. It is a higher resolution shot that has been down sampled in an image editor (if it is real).
I'll leave that up to someone else to decide.