[declan]

If you believe that the FCC clearly unambiguously has the legal authority to advance Net neutrality regulations, then why would Congress have wasted its time drafting (and almost enacting) a law that would have given the FCC the legal authority to advance Net neutrality regulations?

[AnthonyMouse]

A) It is possible that members of Congress wanted to grant the FCC the authority to advance network neutrality regulations without subjecting ISPs to the full gamut of regulations they would be subject to if classified as a telecommunications service.

B) You are presupposing that all members of Congress act rationally and have an expert knowledge of the existing state of the law.