From what I recall, the reason why her argument was recognized is because it solved a thorny problem of US anti trust law, proving harm.
Currently, in the US what matters is showing that consumer welfare was harmed. AINAL but proving harm is not easy - Amazon in particular reduces prices to the end customer, increases choices and makes sales easier.
This is where most arguments died, however her approach had enough merit to pursue.
However, it seems her approach and argument has changed, and is more couched in terms of current legalese - more focused on showing consumer harm than applying a new legal approach.
From what I recall, the reason why her argument was recognized is because it solved a thorny problem of US anti trust law, proving harm.
Currently, in the US what matters is showing that consumer welfare was harmed. AINAL but proving harm is not easy - Amazon in particular reduces prices to the end customer, increases choices and makes sales easier.
This is where most arguments died, however her approach had enough merit to pursue.
However, it seems her approach and argument has changed, and is more couched in terms of current legalese - more focused on showing consumer harm than applying a new legal approach.