The GoPro is an action camera designed to capture action. Recording an entire baseball game using a Fish eye lense is hardly the definition of action. It's also the wrong camera for the job.
Let's look at the entire quote rather than the small section you posted:
"As before, you can expect 45 minutes (of 4K footage) or 90 minutes (when shooting at 720p) from a charge. My sample lasted for 47 minutes when shooting 4K/60p continuously, with only a few screen interactions before shutting down due to overheating. I then got an extra 11 minutes out of it, but with more screen tapping it would likely have lasted the claimed 45 minutes in total."
Seems that the reviewer is either confused or can't do math. He claims he got 47 minutes shooting 4K @60FPS. This would actually be 2 minutes more than the 45 minutes that one can expect. He then also get 11 extra minutes out of the camera bringing that up to 58 minutes total. The reviewer also didn't post what conditions he was using the camera in, was it actually "action" or was it a static shot in bright sunshine without any external cooling. The reviewer also (falsely) claims that there are no ND filters availble for the camera (there is an ND filter option).
The SD card issue is not BS. Slow cards can cause an overheating issue, I actually posted quite a lengthy explination as to how this happens and why. Is it the only cause of the GP7 overheating? No, I don't think so, I certainly do think there are other factors involved such as types of shooting, environment, batteries being used etc. The SD card is just usually the 1st thing that needs to be checked as the wrong card will cause overheating issues. This goes back as far as the GP Hero 2 and it's why people need to pay attention to the specs of the card they use. This is even more important with the GP7 as it uses an overclocked version of the GP1 chip that was used on the GP6.
Blaming the camera for every fault is akin to eating a burger and being ill. Everyone immediately wants to blame the burger but very few will question "Was the lettuce washed? Was the mayo kept in a fridge or left on a counter? Did the employee wash their hands?".
If you have worries or concerns about the GP8, then the best thing you can do is wait until more units are sold and keep reading the reviews to see what the issues are and how they are being handled. However expecting immediate answers regarding a product that's not even on sale is not going to prove to be productive.
