but who's to say the R5 is not reliable? if u looks there are alot of early reviews saying that they had no overheating issues with the R5.
in this form factor, do u really think a little fan is gonna improve overheating that much? if u do, then you're just not being realistic.
I for one, are grateful for these overheat limitations and warnings to protect the camera.
Those who understand the R5, its meant for short bursts of high end 8k, 4k/120 video not elongated usage at these specs.
We'll see what happens when the production models roll out but I have a hunch, that the R5 will do 4k/60 or less with no major overheating issues