The only people who could be said to be "in control of" a smart contract are the miners or validators producing blocks. But they are just executing the code of

The only people who could be said to be "in control of" a smart contract are the miners or validators producing blocks. But they are just executing the code of the blockchain and the smart contract, and if any one of them didn't do it, someone else would with no interruption of the network's functioning. So it is a real logical stretch to assert that they have any control.