What employers haven't considered is that when employees come in they spend the majority of time with each other. That means that the culture they are building

What employers haven't considered is that when employees come in they spend the majority of time with each other. That means that the culture they are building is one of us against them, where them is management and the upper echelons of the company (or any other group that doesn't seem to have their best interest at heart). Once they start working from home they are effectively isolated and not spending that time with each other. So I think we could argue that working from home is working in favour of the employer.