That is the point of the patent, isn't it? They have the patent so that no one else can use the same filming style. They don't intend to sue anyone, but if someone is filming in ways that are too similar to theirs, they will try to get them to stop. That can range from polite emails to cease-and-desists.
So basically, they don't intend to sue anyone over the patent unless they can? How exactly would you sue people who stop the infringing behavior upon request?
