I think you must be ignoring television and video here? Basically everything that was shot on digital video for broadcast for decades was shot on 3-sensor cameras, and every "serious" video operation from sports to news all the way down to wedding photographers and high school videographers with any scratch at all were using 3-ccd setups. Sony's current (and only) 8K TV studio camera uses 3 sensors.
I think you must be ignoring television and video here? Basically everything that was shot on digital video for broadcast for decades was shot on 3-sensor cameras, and every "serious" video operation from sports to news all the way down to wedding photographers and high school videographers with any scratch at all were using 3-ccd setups. Sony's current (and only) 8K TV studio camera uses 3 sensors.