"Door was operated by a person. Door was stopped by a safety. Door was probably operated because he signalled by hitting the damn button.
What happened to LOTO or personal responsibility for your own safety?"
It may depend on why you assume this sequence of events happened.
A) Ford randomly wanders around the set hitting buttons because he's bored;
B) Ford is practising a scene that involves him hitting the button, understanding that nothing will happen because the set is turned off for practice.
In the former scenario, I'd certainly assign at least some blame to Ford since pressing random buttons in an industrial setting is generally a bad idea. In the latter, Ford would appear to be entirely blameless. No doubt other scenarios could be constructed in which all, some or none of the blame is assigned to various different parties. The details haven't been made public, but a court appears to have decided that it was, in fact, the fault of the company managing the set and not Ford's. Unless you have access to information not in the article, blaming Ford seems a little odd.
As for the more general question of what happened to personal responsibility for your own safety, there's a reason health and safety laws exist in the first place. You might as well complain that it's child labourer's own fault when they get their arms chopped off in a mill. As a society we've decided that actually not all accidents are entirely the fault of the person involved in them, and that employers have the responsibility to minimise risk to their employees (and anyone else on site) as much as is practical.