So, light cannot go faster than light?

Being a scientist who has been published (peer-reviewed articles), the fact that the team's study was published in the U.S. peer-reviewed scientific journal Physical Review Letters leaves me cold. From all that I can determine from all that I've read is that if the photon is regarded as macro matter, it (light as a particle) can't travel in the three dimensions of which we are familiar faster than itself travels. Huh??

But let's give Du Shengwang of the Hong Kong University of Science and Technology credit for getting this "finding" out into the mainline media. Yeh, I get it now; light cannot travel faster than the fastest speed that light can travel. Must be a String Theory kinda thing ...

So matter (the photon) is the medium (not clearly defined), not the message (worldwide media). And if you study the medium long enough, you may eventually get the message.

What am I missing?