Re: The devil you don't know?
Maybe they are waiting to pounce, but its an effect rather than a cause - pure opportunism.
What you are seeing is the effect of the same forces that got you Brexit manifest in a different way. There is no longer enough slack in the system to allow it to run properly. Its usually the product of management with an "efficiency" fixation pushing to do more with less until you pass some inflection point where it breaks down.
My former boss likened it to a worn bicycle chain: you keep adjusting it until its overtight and fails catastrophically. He was a great source of colourful metaphors...