Don't forget that when you come onto a forum like this, you are getting the opinion of gear heads for the most part. So they are far more likely to get the latest and greatest, regardless of cost. What makes the Canon system far more appealling than the Sony system is you don't need to get a single RF lens. If you already have EF glass, that's all you need. If you don't have any Canon glass, you have the choice of EF and RF lenses. And the availability of high quality used EF glass is a huge bonus. I have read many comments regarding Sony lenses where photographers had to buy multiple copies until they got one that wasn't de-centered. They are larger than they should be for a mirrorless system because the Sony mount is too narrow - thus many of their lenses have the rear element farther from the mount. I think last week I read a Dustin Abbott review (I think it was Dustin, if not, I hope someone corrects me) where he mentions that he needs to clean his Sony sensor every week. (I have seen many complaints regarding Sony's dust cleaning, as well as their IBIS being below par). Sony makes great sensors. I don't really trust their ability to make a camera that isn't designed more for gear-heads rather than photographers. The A7 II I bought, for example, underexposed by 1 1/2 stops. So I really have no confidence in their ability to make a camera for photographers.I agree with a lot of what you say, but the question I have is - why are so many people willing to pay them? (OK, I don't know the sales data so I don't know what "so many people" really means. I simply mean that there are a lot of people online who are excited about the RF gear and willing to pay for it.)
I have really enjoyed my Canon gear and I am far from anti-Canon. However, I am struggling with the price of the RF gear, and that is only emphasised when I look at what is available in the Sony system (albeit often from third party manufacturers). Even if a lot of Canon's L series RF lenses have legitimate claims to be best in class, it's not like you cannot get excellent lenses in the Sony system. A few years ago I would never have dreamed I would be suggesting the Sony system offers better value than the Canon system, but as things stand now that is how it seems to me (at least if you leave aside service - which Canon seems to do very well at least in some parts of the world, and I can understand that being valuable to professional photographers).