Completely agree. Apple has an unhealthy obsession with phones being thin, even when it compromises battery life and actually makes the phone harder to hold. Did anyone complain about the 5S being too thick? I doubt it.
the 6S already weighs 25% more than a iphone 5S (in fact it near as dammit weighs the same as every iphone from the first through the iphone 4S, but still more than any of them). excluding the plus models, it's the heaviest iphone ever. more thickness = even more weight.