The Debate On Faith Dramatically Changed

The argument that our Calvinistic forefathers had with Arminians regarding faith, in its relation to salvation, was whether faith was a sovereign gift given to the elect efficaciously or whether it was the result of "free will" and human effort. The debate was never over whether faith was necessary to be saved. However, with our Hardshell brothers, the debate went from the cause of faith to the debate over faith's necessity for salvation (middle to late 19th century). What a change! 

What think ye?