There is no comparison between sound waves and photons in this context (apart from the wave-equations). Sound is energy passed from one particle to the next and cannot exist in a vacuum. There are no fundamental laws that preclude any mass going faster than a sound wave in air as long as you can displace the air particles fast enough to overcome friction. The same argument goes for water. It's not reasonable to make the same argument for granite since it's easier for sound to travel through granite than for you to drive a vehicle through it. In fact sound travels in dense mediums like rock much faster than in air. In air, the speed of sound depends on pressure and temperature.
Light however, is an electromagnetic wave that travels without any medium at all. Therefore light can travel through space, while sound has a very hard time of it since there are only a few atoms per cubic Km of space. In fact, light is made of photons which have no rest mass. This means they cannot be accelerated or decelerated. If you are a single photon, you have two options. Speed of light or nothing.
Through any medium, photons bump into atoms, get absorbed, and then emitted again which slows the entire beam down (but while existing, each photon travels at c).
So even light cannot break the light-barrier, and anything with a rest-mass must travel slower. There is no way around this. Not even with faith and inspiration.
Since it is information that can piggy-back on a photon, you can extend this to say that no SIGNAL can travel faster than c. This is a more useful definition. It's theoretically possible to fold or stretch space without violating this rule. So it's possible in theory to join two points of space with some kind of short cut or to stretch space so fast that two objects separate faster than c. But in neither case is the light-barrier broken and to manipulate space itself this would require mind-bogglingly high energies.
BTW - Neutrino FLT was found to be a cable-problem which affected the measurements.