Based on your linked article and looking a ATT TV’s website, it has a couple of things wrong.
ATT TV non-contract service does not include the ATT TV device but you can buy one. That is different from the previous ATT TV Now service where you couldn’t buy one at all nor did one come with the service.
ATT TV has both a contract 2-year service and a non-contract service with differing prices for the subscription levels offered. The non-contract has 3 levels available, the contract has more levels, notable Total and Premier. The contract service comes with one ATT TV box for ‘well qualified subscribers’ and also offers additional ones with 0% financing or upfront payment.
IMO, ATT TV insists on offering the most confusing mish-mash presentation compared to any other streaming service. This has been true since day one and continues unabated.
Note that the current contract offering does not include the $200 rebate of just yesterday therefore it is also a cost increase without saying so.