One of these NBA draft evaluations talks about his lack of proper follow through, although it also mentions that the results speak for themselves:

http://www.draftexpress.com/profile/Stephen-Curry-1170/

This next link is not really an article, but it reflects the thoughts of lot of guys who agree with me; so hey, at least I'm not alone in my opinion:

http://forums.realgm.com/boards/viewtopic.php?t=1427381

This next article describes his shot thusly:

"Using an unorthodox jump shot, he is able to get the ball out of his hands in under half a second by releasing it on the way up, adding extra arc to his shot and making it difficult to block."

http://nbafamily.wikia.com/wiki/Stephen_Curry

Here's a couple more that mention how although his form is unusual and unique, it also gets unusually good results:

https://www.linkedin.com/pulse/career-lessons-from-stephan-curry-nbamvp-what-pain-greg

http://www.stealingshare.com/2016/05/11/steph-curry-stayed-true/