Stop activly looking for negatives 😉 there is always another side to a story or angle to look at, for example despite the issues he still gave it a glowing review, and I'm sure he'll be able to get a replacement handset without the problem he had.
Of his negatives, most are addressable (rectifiable)
Build quality - issue can be rectified by getting a replacement handset
Sense 5 home screen, gallery, Zoe Share not user friendly - this is where just checking out youtube before you get the device works wonders.
Inconsistent camera software (HDR specifically) - agreed the HDR is definetly inconsistent, and likewise the auto-fix option in edit after you have taken the photo. But these are software issues than can be rectified with software updates
2-button layout and lack of remapping option (menu button) - yes this should be there as it is even mentioned in the instruction manual, should be re-instated in a software update.