I first properly encountered Jason in the thing where I got my icon from (which is I was a little baffled that anyone could dislike him, much less pay to have him textually killed), but yeah, I've been giving a huge benefit of the doubt to Winick ever since Under the Hood and beyond. Love it or hate it; I thought it was excellent, and all the more reason to be bitter now that Winick remains the only writer at DC who genuinely likes the character. Or so it seems.
It's a complete mystery to me how anyone would think that Jason (hello, massive brain damage and psychological trauma of sodding dying!) needed any more angst to justify his bouts of crazy. A well-written redemption arc could even lampshade/handwave his behaviour in BftC! (Where is my Jason redemption arc, DC.)