Earlier quoted context omitted.
I guess the point is that they still save on average. Most calls can probably be handled using a simple script.
They may save on average, but that's just shifting the expense to the customer in terms of wasted time. If there is anything I've learned over 30 years of running businesses that being disrespectful towards your customers' time it is that you will end up losing those customers.
No matter how many people know better, there are plenty more that don't.