I don’t disagree there was a very serious lack of overall communication about season 4 from the start. But it wasn’t just the LFR group that assumed things. There’s a chunk of players I even spoke to who thought it came from normal so I wouldn’t go to far as to say Blizzard knew and purposefully made everyone believe this when it wasn’t really a popular belief until this moment when people jump on a bandwagon.
My circle of friends is definitely different but I also have a lot of people I know who take this game more casually and even they thought it came from normal. I don’t think blizzard sat there watching people believe something because for all we know it was a very small portion of the playerbase who expressed and believed that. That being said their communication was poor.