I think Sony has always listened to many of their owner’s concerns. I do believe that we are at the point where perhaps many simply prefer a small size... and that’s fine for most. I happen to have large hands (even for my height) which is what prompted me to want a larger body because some of my client work has indeed changed from when I originally bought into the system. All things equal though, I’m perfectly happy with the results of their cameras though I do get occasion envy of aspects of some other systems... namely Fuji and Panasonic. I still keep a light kit for Micro 4/3 and I regularly go back in forth on adding a GFX.For me the Sony success mainly comes from really listening to their customers. If you compare e.g. the A7R3 and the A7R4 then you notice immediately that the total haptic has significantly improved over the past 2 years. It is today on a level where it is hard to complain anymore and this is just in the haptics department. But as we all know that is not the only difference and evolution, more importantly there is also the eye AF that works in Sony cameras meanwhile like in no other brand and I dare to say that others will also in the coming years not come close to that and finally there is the 61MP resolution that is currently not offered by anyone else than Sony, although that will change.
The Oly EM1X was far too expensive from the very beginning - I maybe had bought it for 2K a year ago, but today I would not even care any longer. What is really overdue is a EM1.3 with a better (newer) sensor (24 to 28MP with better DR and high ISO capabilities) and a very much improved EVF (5.7MP with 120Hz as in the A7R4. If they had such a model ready by early 2020 then I could be convinced to stay with Olympus and not switch to Sony FF. But my hopes have almost vanished and I strongly believe now that we either will never see such a camera from Olympus or if we do so then maybe around 2024 or 2025. And that time span is definitely too long for my liking as I live now and want to use such equipment now and not in 5 to 6 years.
I hope that these few thought of mine describe now one of the biggest failing points of Olympus today.
In all seriousness I could get by with two A7III’s for all pro work and have a GFX for pro portraits and the rest of my personal work and be entirely fine with that. I wouldn’t mind an updated Sony 50mp sensor with the improved benefits of the GFX100 camera... simply because o find that the GFX 50S is probably as big of a cameras as I’d want to go. I’m in no hurry and my next camera puts chase is likely the Tamron 70-180/2.8 and the next gen Sony bodies to upgrade my existing ones that are 4-6+ years old. Again... I know that Sony takes heat for releasing bodies slightly more frequently but they keep the older ones around as value options.
As for Olympus, I worry (somewhat) about their long term future but apparently they do much better commercially in Asia than in USA.