According to Thom Hogan, camera makers look at other camera makers, not at customers, when designing new cameras.
By targeting other manufacturers, sales are netted on the slippery backs of system jumpers. Endemic to system jumping is dabbling, and its apparent market growth. This occurs only when a technology excites the enthusiast. When that technology ripens, enthusiasts move on.
It is an unsustainable market. Camera companies gaining market share in a dwindling market will result in the death of numerous mounts, the wholesale liquidation of lenses, accessories, and cameras, and the alienation of investing customers.
Mirrorless or not, everyone is making a wannabe dSLR. Everyone is making fantastic lenses. And yes, there are some cool technologies underpinning today's latest mirrorless cameras. But apart from smartphones, nothing new, nothing that revolutionises the way the user interacts with their camera, or the world they are shooting, has hit market.
It was never the camera that we wanted: it was us. And the easiest way for us to get more of what we want is the smartphone.