I just saw the video by Kevin. We will meet in the war zone and photograph
If my workshops is any measure I can only say that I see few Sony cameras and as many Fuji and Olympus, but all are dwarfed by the number of Canons and Nikons until this day. I had expected 4-5 years ago that this would happen much faster.
So far I have not purchased a mirrorless system and I have looked into many EVF's and thought, OK, one day I will have one, but so far I don't like what I see even though it is what I get.
As stated by many including Kevin and including the recent video from Tony and Chelsey Northrup (see here https://www.youtube.com/watch?v=mYYaQz83etY ) the traditional camera makers like Canon and Nikon would need to cannibalise their existing lineup and market mirrorless as better than what they have. They also would need to invest in both product technologies, so not that attractive. Btw. the same problem car manufacturers have now with the transition to electric. It will be interesting to see how many will survive these transitions. It is not a given they all will. I'm pretty sure they will not all make it.
Your observations do not surprise me one bit!
When it comes to change in photography there is always inertial resistance...
Yes, there have always been early adopters (this forum is probably over-represented in this respect) but the mainstream has always been relatively slow to adapt
Also, it depends on what is changing and how big that change is.
I own Both Canon and Sony equipment.
There is absolutely no doubt that late-model Sony cameras easily outperform their Canon counterparts. However, there is also no doubt that Canon cameras produce stellar images.
Also, the reason that I was able to buy and use Sony cameras was that it was not a case of going cold turkey on my Canon equipment. Every Canon lens, with some limitations at times, can be used on the Sony bodies. Where the Canon bodies hold an edge I use them; when the Sony bodies have the edge they get a run. I still use both systems interchangeably according to the needs of the image...
But, the point is that even if the Sony bodies are demonstrably better in many situations to their Canon counterparts, the Canon bodies are also demonstrably good enough.
I probably would never have changed apart from the fact that I wanted to print big and so resolution and fine detail became particularly important.
If Sony (and other mirrorless vendors) are able to maintain their technological edge over Canon, Nikon, and other latecomers to the mirrorless party, then, over time, more and more photographers will switch and newcomers will increasingly choose Sony (or one of the other mirrorless systems) as their first investment.
None of the currently implemented new technology is truly revolutionary. When it comes to the end-image obtainable the changes are currently evolutionary rather than revolutionary. The delta is not so large that it positively demands immediate change...
I expect the market to continue to shift, incrementally, as the benefits of shooting with mirrorless bodies become more apparent. Yes, the Sony A9 is a definite marker as to the potentialities of mirrorless but most of those relate primarily to how one shoots, and only secondarily to the quality of the end-image.
One thing is apparent to me: the market situation pertaining to mirrorless bodies definitely demands a response from the latecomers to this market. Canon and Nikon are both showing signs of stirring! I for one cannot wait to see what they come up with!
Interesting times ahead...