Quantum physics treats light and matter on pretty much the same footing. Both arise as excitations of various quantum fields; the primary differences are in the spins, rest masses, particle couplings, and gauge symmetries each particle obeys. There are known particles such as the W and Z bosons which carry forces in a manner similar to photons, but they also happen to have rest masses.
Now for your part, you don't seem to understand what is meant by a scientific observation, because qualitative observations are only useful as a guide for what should be measured quantitatively in painstaking detail. If you say you see multiple light emission points from a scattered laser beam, but it looks like there's only one laser source in the reflections, how did you measure the amount of blurring on this reflection, how did you physically compare the dimensions of the laser projector with its reflection? You sure you don't have several scattered images of the laser projector, but they're blurred together because of its size? What instruments are you using to help your eyes focus on the precise details (I'm guessing none).
An example of what a scientist means when they have predictive power: Say I have a film strip and it has a bunch of horizontal scratches evenly spaced, say, roughly 1mm apart on average. Using light sources, lenses, projector screens and polaroids, I want to filter out those scratches while leaving the rest of the image intact- can your model guide you to a process for producing such effects? Physicists have been doing it in the lab for more than 100 years, and it's the basis for much of what Photoshop does these days through virtual computations. How would you go about doing it?