Earlier quoted context omitted.
What do they mean WiFi won't work? How is that anything other than a blatant lie? They probably mean the WiFi built into the cable modem.
How would that be anything other than a blatant lie? Are they going to mail the customer a different model of modem? Do any current cableco-provided modems not have built-in wifi?
No, but all of their features can be enabled/disabled by the ISP remotely.