Honestly…my main concern is that it will go down exactly how it happened with the Tonemapper 
Basically EVERYONE complains about it because there are no alternatives and Epics only reply is a) our tonemapper is great but you just dont understand it (they never said that, but you get that feeling by how they treat this topic) or b) they just tell you: well then turn our tonemapper off and do your own. Like I have a graphics programmer in my closet that is just waiting to do that for me 
This really makes me sad the more I think about it so all we can really do for now is for some folks from Epic to talk to us.
Please Epic…this is an open invitation to, at least have a dialog with us about this! Lets just sit together like grown-ups (and not internet trolls^^) and discuss how this was implemented and how we can improve it. No bad feelings, no blaming or hating…just a normal discussion and exchange of ideas. Wouldnt that be great? 
Cheers!