Worried? I find this disturbing. Their record ain't good

I disagree.

ATOS has an excellent record of enforcing official DWP ie: government policy.

Whether that goverment policy is morally justified or downright evil is another matter.

If the NHS ie: the government continues to sell personal medical details to private insurance companies so they can jack-up premiums for patients with potentially long-term illnesses then I'm sure ATOS will make an excellent job of it.