I see you ignored the part of my post showing that it is not just the addition of a $10 an hour employee. If you are calling and need something, you don't need an operator. You need a technician or someone who can schedule something. That is not the operator. The operator merely connects you to the person with the skills to help you. If the employee has those skills, they are not working for $10 an hour.
As Admiral pointed out, the cable companies are slammed right now trying to hold the system together. It was not a gradual growth but an instant increase of massive proportions. You don't just stick some $10 an hour employee in there to fix it. You need trained and capable technicians. And if you hire them now, and in 6 months they are no longer needed?
You don't even know who I've been calling, or whom I'm even particularly talking about. My best guess (which is all you're doing too) is that the big companies and government agencies, with multiple menu recordings and long hold times, CAN afford to hire live operators (not technicians). This especially true of companies who are monopolistic and know you have no choice but to buy their product, and government agencies.
Also, they sometimes make you wait long periods of times as a method of hoping you'll hang up and go away, because they'd rather just not do their job, by assisting you.