This sounds like nonsense to me.
If there are cons to the employer, that means I'm worth less and can demand less salary - the market might take a bit to adjust for that, but probably not long. It means that I'm going to be working for a less successful company, which is a lot less fun.
Employers and employees are usually in a mostly cooperative relationship, this adversarial view of it just strikes me as wrong.
(And no, before someone accuses me of being biased, I do not and have never run a company or anything like that)