Stagnation is not the answer. LEED has done admirably being just out in front enough to keep people engaged while also keeping them stretching. It is a very tough place to hold. LEED is vilified by achievers for being too slow and allowing too much leeway, and by those struggling to catch up for being too demanding and ahead of reasonable practices. Sigh.
V4, especially in the materials credits, is messy BUT it was so necessary to make disclosure part of this system (and all systems). We cannot improve our work in a system that supports ignorance. I hope the lack of clarity in some of the materials options will go away quickly, through use and airing out and real input as to what works and what does not work.
Thanks USGBC, your amazing staff and the HUGE cadre of valuable volunteers and dedicated system users.