not a fan at all, especially since the previously mentioned (3 years ago) tonemapper controls still haven’t been exposed to us.
we use this trick on our games (both dragon adventures & winds of fortune iirc) in order to make the color white, especially in objects like the skybox, actually white and not the light grey it is in default lighting. this is remarkably short notice for us to change over and validate the lighting on both our current and past projects. please consider delaying to give developers more time to change this over.