Honest question: if you're wrong and more data comes in regarding overheating with stills, how will you cope?
Take it back to Canon and tell them it is faulty according to their specification.....
The current video issues *appear* to stem from reading most of the sensor (8k) as even the HQ modes are sampling the full 8K. That's a significant amount of data which it needs to compress into a h265 format. I don't know how this compares to Canon RAW or their newer CRaw, and whether Digic assists in that like h265 or not. I just hope it (high fps stills) is not taxing it (Digic) as much as constant video, and that the overheating is primarily caused by the higher data rates and their compression (sure the rest of the system is contributing to the heat, but it's only the 8K reading which seems to push things over)...
I can see for some sports, if you're watching a race from various positions and with numerous competitors then you're going to fire off a lot of shots - if you're panning and blurring the background then that is the technique, no? When I have been lucky enough to go on Safari, there have been times where for a couple of hours, it has been teeming with wildlife and the interaction has been incredible. I am sure I have rattled off many shots trying to capture the "action".
With the R5, I doubt many people have had their cameras long enough to do such events, in the coming days and weeks we will find out if this is an unusual occurrence or indeed if there is a threshold for stills. We now know that there could be the potential, and when people's R5 arrives if that user-case is a possibility for them, then they need to try it out and see, or at least be mindful of the fact and take some precaution... On that basis alone, the information is useful (thanks
NorskHest). I'm sure his friend is now checking out their R5 further and will decide for them if they need to seek Canon's assistance or not.
For me, when mine arrives, if it couldn't do the shooting I want to do in reasonable conditions (predominantly stills) without hampering me then I think I would go back to Canon and ask them to fix or refund. I've not seen any caveats from Canon on stills shooting (I don't recall there ever being such a warning on any body I've owned from them). I agree that the R5 is pushing more data around the system but it's these capabilities which has attracted me to it. Whether my opinion would change if I found out I had to lower it to 10fps vs 12fps constant use I don't know. It would just make me nervous on the occasions where I use it that it would be possible to push it into shutdown.... Having said that, I did have the infamous 1Ds MK III (second hand) and lived with the limitations...
At the end of the day, as many people have said, it's a personal choice. Does the R5 work or not work for what you want it to do. People can beg to differ, sure, but ultimately you're the one paying so you get to chose. And no offence to anyone here, but it doesnt matter how much I might get berated for any decision I may make in future, it's not saying anything about any decision you make. It would be great if people could just respect each other's decisions.