I genuinely wonder what lead them to choose a word that, by definition, is so far removed from the concept being described?
If we accept how this law wants to redefine Theft, then trespassing, squatting, illegal parking, and many other violations should now be called theft too since they involve using a resource in an unauthorized way and are actually depriving others from using the resource (which does not happen with cable modems). Spamming comments should also be called theft too since they're using server resource in an unauthorized way.
But I have to submit: If discussed within the context of Theft of services in ORS 164.125, then I supposed the misuse of Theft can be excused. That said, I really don't think we as a society should humor or follow how some lobbyist or politician decide to misuses words.