It is! In engineering, as discrete from science, the point of theory is to know what is going to happen in practice. If theory can't tell you, then it's useless for practical purposes. If the theory is ignoring important aspects of reality that make it useless, then what's the point of theory?
Eg In theory we can move faster than light, we just need a source of infinite energy. In practice, "infinite" is an impossibly large amount of energy, so any theories that allow for faster than light travel are only interesting for entertainment/theoretical purposes.
For wireless connections, the gulf between theory and practice is just too large, so theory remains theoretical.