No, they have not “created” these dual eligibles in order to control anything. Policy affecting duals has been around since the creation of both systems. Pilots such as this, approved under the authority of section 1115 of ssa, are common in all of the states. The state submits the proposal to CMS for approval, CMS approves with an expiration date, and if the state wants to renew it must resubmit with evidence of cost effectiveness evidence. HHS cannot and does not propose and approve anything.
This is a poorly written article showing little to no understanding of the program processes for the dual eligible system and demonstration processes used by states. With a little research the author would know that similar demonstrations are approved and running in other states, some with republican leadership.
I've been helping seniors, both rich and poor with health insurance since before there was either Medicare or Medicaid or a President LBJ. I throw that in before you come back with your comeback.