Confusing PAD layout in datasheet
Taking the drawings into consideration, the conclusion would be that the "Bottom" view is flipped in relation to "Recommended soldering pad" (as you imagined). Which one is correct would be hard to determine.

Then, a few pages ahead: 



Looking by this image, which details how the LED comes in the reel, we can get further evidence that the "recommended" soldering pad is the one mirrored. As Anonymous said: contact the manufacturer to be sure.

I was looking at another datasheet now, and in this other one (EASV3020RGA1) the pin numbering in the Pads is "reversed" in relation to the one you posted (that is, not conflicting with the other drawings in the .pdf):



So.. again, nothing definitive, but many things pointing to an actual error in the datasheet.