> It's not calculated, and not personal.
It doesn't have to be either of these things to be intentional. Pretty much every large system is too complex to be calculated or personal in the way we would apply those terms to a human. However, you can still describe a system as having values and goals, still analyse it in terms of its incentives and the mechanisms it evolves to achieve them in its environment.
The incentives are continued YoY growth, the environment is a saturated market, and so the mechanisms are monopolistic and anti-consumer practices. "Go to the Xfinity retail store" doesn't prove anything except that you passed an effort gate, segmenting you away from someone working two jobs with young children at home. 1% of customers costing the company $10 is the same as 100% of customers costing them 10c, with the added benefit that your segment is more likely to hurt retention than the one with no time or energy for comparison-shopping.
Did a single person design and orchestrate this state of affairs? Unlikely, but the company as a whole is more than capable of blobbing its bureaucratic way towards more efficient digestion of your funds. Never underestimate dumb optimisation processes at scale. Given enough time, such processes have turned monkeys into Shakespeare.