It may sound weird coming from me, but overall I'm not a big fan of piracy. If I want to see a movie, it's pretty easy to just pay a small fee and get an HD stream through legal means. If I want music, Amazon's got a bunch of MP3 downloads available. If I want comics, I go to comixology and read them digitally (no more storing comics, yay!) My point is, there's plenty of options if you want to support a favorite artist.
I always feel a bit skeptical about studies like this. At this point, I can see how numbers and facts can be distorted in any number of ways to support any claim. There's plenty of "facts" on the Internet, but it's pretty hard to tell which ones are reliable, and I certainly am not going to verify everything that I look up.
I guess my point is that I hope this article is true and that the multiple ways of accessing media legitimately encourages people to do the right thing.
Toku and Japanese media is kind of weird in that the fandom is so small, I don't think that even if the fansubbers went away, there'd be a market for legitimate DVDs/Blu-rays.