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mirrorless and extreme clarity are what Leica have been doing for decades so they are not innovations
I'd argue against that.
I love Leica, I have a romanticised affection for everything they've ever done.
But if you remove the emotion and look at scientific measurements of sharpness, chromatic aberrations, vignetting, etc... then all of the great lens that currently exist come from the last 10-15 years. That is quite something.
https://www.dxomark.com/Lenses/ has a database of nearly every major lens from the past 50 years (though you have to pay to get access to the totality of their database and they gate Leica and full format things as they know those customers freely spend money and will pay money - but still, all the great lenses are relatively recent which is driven by digital sensors exponentially improving)
Velocio-
I think the improvement in the last 15 years is the best widely available commercially produced lenses are machine ground and where film benefitted from a slight separation in focusing of different colours sensors and lenses have been engineered for better synergy.
I notice you didn't have much to say about mirrorless but wouldn't it be tough to argue Leica hadn't been doing that for decades?
Airhead
A lot of your list of innovations is correct but mirrorless and extreme clarity are what Leica have been doing for decades so they are not innovations.
I agree with your overall point about innovation in camera systems though.