First of all, any object is described by wavefunction in quantum mechanics. It just implies there is certain probability to find the say particle outside a potential well. However, the term "quantum tunneling" implies
1. An object travels from one point to another.
2. Even if we do a measurement and we find it outside a potential well, it may be just originally there. However, the term tunneling implies it is originally at some point.
3. "Tunneling through a potential well" already implies an object is on one side of the potential well, and move to the other side. This is wrong.
All in all, may "Quantum tunneling" be an unnecessary term which should be deleted in later education of quantum mechanics?