>>3306694Because smartphones are destroying the camera market. The money is going into R&D for smartphones because that's what people are buying and a significantly better camera sells phones.
Camera makers don't have any incentive to innovate because the compact camera market is dead in the water. If anything, most companies are getting the fuck out of there. The interchangeable market is largely stagnant other than mirrorless shaking things up. Canon stopped trying years ago and dripfeed improvements. Same with Nikon.