I don't know the full scope of exactly what they are covering, though I see some here have participated in the other forum to answer questions or to just inform the user that it is not the device.
The issue is unless you are a technophile, IT, tinkerer, etc, the tweaking could seem pretty daunting to make the concessions that some are recommending to get throttling, battery life and heat to acceptable levels compared to the previous model.
It seems some have come to the conclusion that it is NOT the device, it is the user's expectation of the device, the software glitches, the unwillingness of the user to do basic tweaks or any number of reasons that the SP3 is having reported issues.
If overheating, throttling, less performance than the previous version and battery life weren't issues, it wouldn't be addressed at all.
I say that given the info and marketing of the SP3 before it's release, anyone that claims they expected severe thermal throttling, systems shutting down due to heat, and less sustained performance than the previous version is not being completely honest.
If "many" people had not reported these issues, we would not have the Updater fix, lowering of the brightness , notifications tweaks, 8/19 update fix for throttling, etc.
Shining a light on the device, whether good or bad actually makes it much better and everyone benefits.
We will definitely see more articles like this and MS will eventually respond.