"It is not faster (in the physics sense). "
But the description in question is not a physics lesson. It's trying to describe how digital radio works. It's not done very well, but I think suggestions that they are trying to claim some radio waves travel faster than others is missing the point.
It's worth keeping in mind that when it comes to the quantum world of particles, just about any explanation we use about how things work is based on simplified models that we, in the macro world, can understand. All these models have limitations where they break-down and can be picked apart. Halford's attempt at an explanation is no different.