why in hell would they do that. Blizzards MAIN focus is making money. Now they make a shit load of money. Mora than any other game company ever will by the looks of where games are going now days.
Making a game free to play is something they do when they might earn more money on a cash shop than subscribers. Cause they are dipping day by day.. Lets face it. Wow aint dying any time soon. Its going down. But not nearly fast enough to make it f2p.
They are now making a ingame shop. Something they probably also will get away with. And make even more money.
Not a single other game, currently out can get away with p2p and ingame cash shop. So they are in a good spot.