It's about years of routine communication between a business and it's own customers that stops. Like my clients who had to stop providing product support over SMS - even tho that what their customers prefer.
It's about I can't send or receive texts from my personal numbers to anyone because my MNVO carrier can't afford the cash and ceaseless headaches that TCR impose.
SMS spam continues to flow. Legit traffic is cut off unless the ransom is paid.