I wasn't saying that corporations are required to hire and then keep their hires on staff. I was talking about the societal impact of the possibility that corporations would lay off large chunks of their employees, during a climate where no work was to be had due to technology taking over most of those jobs.
Being fired and being unable to find employment elsewhere often has serious financial, physical and mental consequences for people. Often times it can completely ruin a persons life.
Not everyone has savings, or even the possibility to create savings, making the impact of being made redundant even that much more harder to handle.
Severe life changing situations can often lead to drug and substance abuse which carry with them higher chance of death. These situations can often directly lead to suicide.
Not every society around the world has systems in place to capture those that fall down, and even those that do are going to have a difficult time handling the large influx of people needing assistance if the techno dystopian future in the article comes to pass.
I would recommend checking out the excellent book "The Body Economic: Why Austerity Kills by David Stuckler & Sanjay Basu" on the societal impact of austerity.