> It can also reduce ambiguity when negotiating with an employer who is unwilling or unable to respect their liability.

I'm don't think your comment supports your conclusion. Your comment explains that employers are capable of ignoring the law wholesale and engaging in highly illegal acts, but then you conclude that adding more laws will influence them.

The link seems very tenuous, the comment actually seems to be making a good case that having a law saying "don't phone people" will do literally nothing.