Really enjoyed reading this!
I do intensly disagree about 24mpix being good. It just doesn't make sense in todays market to keep resolution that low.
Balooning filesizes excuse is moot. Filesize to storage cost ratio has been consistently steadily decreasing and it's cheaper to store your data today than ever before.
If R1 was 45 mpix, it would've been king of the hill. Now it's barely a prince.
The point being made by Josh, and I agree, there is no reason either of us need more that 24mp. It doesnt help in printing, cropping isn't a "feature" that is needed. Why do I want bigger files? Why do I want Lightroom to be even more inefficient? (Adobe Sucks)
File size does matter in some cases. My NAS is SSDs (8 * 4TB RAID5), I will never have a spinning HDD again.
I shot the Leica Q3 at 18mp. I don't miss the other 42mp at all.
In a pro sports setting where files are being moved in realtime, it speeds the whole process up, and again. More than 24mp isn't needed. It isn't needed in warzones, which again is about transfering data as fast as possible.
It's not a camera even with 45mp that would be used on a Louis Vuitton shoot. Landscape photographers wouldn't buy it any meaningful numbers. We saw that with the 1DS series. Once the 5D series came out, that's what 95% of people bought over the 1-series. Hence why the "1DS" series died. The sports world was using 1D series cameras, even with APS-H.
If you want more resolution, have at it. Having owned 45-60mp cameras in the past, I didn't find any benefit to them. If I was going to go crazy MP? It'd be a medium format camera.
The speed of the R1 sensor also aids in the autofocus performance, which is the best in the business.
Different use cases, and that's why there are so many different cameras for you to choose from. The R1 is already the "king of the hill" as far as the flagships go. A camera is the sum of its parts, and Canon is well ahead of Sony and Nikon.
Nobody that I know who owns the R1 cares that it's 24mp. It's not a camera that sells in volume, so making a business case for more resolution wouldn't move the needle at all, and it would bring about compromises for its target market and performance demands.