There was no offence meant, and I'm not the OP you initially responded to, as you seem to think I may be.
All I'm saying is that these cameras and the 5dii iii and iv before them, are favourites for many wedding photographers. Not only are they favourites, but they're actually marketed as such, if not directly 'this is a wedding photographers camera'. They are not solely 'consumer cameras', if at all.
Its not that I didn't like your assessment. Its just your assessment is based on very light usage when compared to many photographers, and your conclusion to that assessment is: "I dont see any problems with the way I shoot, so therefore everyone else is wrong". Well, thats a flawed conclusion.
Again, I dont shoot with any r series just yet. But I do shoot professionally, as in its my job and is my income. I'm currently using 5div bodies, and sessions range from 1 hour to 14 hours. I shoot something between 400 and 6000 or more in a given session depending on its length.
Your claim that 400 in 4 hours is a good indicator to whether the camera gives off excessive heat doesn't hold much weight to the people who use these cameras in a different way to you.