You still have to have someone to seed it. So the the problem wouldn't be any better until a few hundred peers with high speed uploads got the full image.
Somehow an illegal copy is seeding 1300 people.. and one of the largest technology companies in the world didnt seed it, I dont see a problem if they did it through torrent.
And getting legit key web traffic isnt nearly as taxing as all these people trying to download a 3GB file.