I'm all for it. I find the arguments against it amusing as always.
Do we need it? no.. does it it bring value, yes!
You could say similar things about autofocus, tracking, dynamic range, live view, digital zoom in live view, tilty screens, high mega pixel etc etc.. people were able to take pics before all of these... so not needed. Do they help, heck yes. Especially those of us that like taking pics of objects in low light (wildlife, kids, bands etc)
I can tell you from a looong history with digital cameras (yes used ones with floppies in them) that each improvement does bring value and had its neighsayers. Many of those same people are converts now.. don't like the features? great, there is a pretty extensive used camera market you can get older cameras without those features for cheap!