The conspiracy take would be that someone wants the specific negative outcome we have and is deliberately calibrating their actions to achieve it

“Hidden interests and hands” in this case more charitably refers to the vast complex system of distributed incentives that different actors in the system have. If everyone washes their hands of their own little corner of the problem and refuses to take accountability at any level, in aggregate it leads to negative outcomes at scale. And of course no individual actor would want to publicise knowingly looking the other way: thus, hidden interests and hands