that use to be the case but I think since the C200, FS5 and now BM6K Pro, C70 or even FX6, that is no longer the case. They have great battery life so you can stay away from Vmount. Built-in NDs mean you can avoid a matte box. And stellar AF avoids the need for a follow focus rig. A lot of DPs do love to over rig their cameras and that's fine, just not my ethos. I usually strip them down to the bare minimum, I like fast energetic shoots to keep the momentum going. Obviously you can't do that with URSA Mini, RED & ARRI. You need a crew if you wanna be comfortable. Different scenarios. Different applications. Different results also.
Sony is definitely cornering the market, mostly in broadcast. A friend of mine just joined one of the biggest TV shows for fashion & music and told me it's all Sony now. Used to be AMIRA up until just a year ago. I'm not sure why they switched but could be weight related as he told me they alternate a lot in between sticks and shoulder rig. Or did they go FF? I hope to go visit the studios and find out more.
Fuji are killing it, and XH2S would also be my first choice today for personal camera and pet projects. But with no real upgrade path, limited ecosystem & outsider reputation.. Sony does feel like the best system right now as far as getting pro work in the industry. I still prefer Canon colors, ergonomics etc but their pricing isn't very competitive neither in pro bodies or RF lenses and their politics are lousy at the moment, they need a change in CEO or something.