Smart move, I'm sure that some bettors will definitely be attracted to this platform, due to their ability to reduce fees, given that recently that became sort of a problem. Also, the name means a lot, they have a decent reputation, people will follow.
But I'm not sure about this
Prediction markets rely on the idea of the “wisdom of the crowd” or the idea that a collective group of people will have a more accurate assessment of a market than any lone expert.
In my experience, no matter what audience and question you take - more usually the majority is wrong because most of these people are no experts, it's natural that they don't have enough expertise to make valid assumptions. Now, if we take a group of experts - that's another matter. But as far as I understand it, with this action the Augur will attract more of an ordinary crowd.