The thing that large companies care the most about in the legal realm is certainty. They're obviously going to be a big target of lawsuits regardless, so they want to know that legislation is clear as to the ways they can act - their biggest fear is that you get a good "emotional sob story" in front of a court with a sympathetic jury. It sounded like this legislation was so vague that it would attract a hoard of lawyers looking for a way they can argue these big companies didn't take "reasonable" care.