Perhaps that simply proves you don't get around enough, or talk to enough people. Originally, "cutting the cord" meant CUTTING THE CORD. The "cord" being a tangible, physical device, also known as a "wire" or a "cable". The phrase meant to end any and all reliance on any sort of wire, cord, cable or other form of long, skinny conductor of electronic signals, and to instead rely only on antennas capturing signals from the air, without any sort of (are you ready?) CORD.
It is true that grammatically lazy people misuse the term to only refer to unsubscribing to conventional cable service and using a different mode of getting signals over the exact same cord. That only proves that many people are grammatically lazy.
No, actually what it means in this era of wireless communication, is to disconnect TV delivered via cable or sat. Language is not static, particularly in America. Keep up with the times you grumpy old fart.