What would you rather them say?
I'd rather they didn't say anything TBH.
Much of the movie piracy these days is in the form of downloaded content anyway - so all you get is a stripped down copy of the movie without all the trailers, copyright/piracy messages etc. I bet even a lot of the copied DVDs have had this stuff stripped out.
The vast majority of people who get to see these messages are legitimate buyers - so who exactly are they preaching to?
Fine - if they absolutely must put them on - at least make them skippable - so people who have bought the movie legitimately dont have to sit through it every single time!