The video has been making it rounds in the tech community for how ridiculously bad the video is. It has been compared to polygon's "Doom" gameplay video and called out by other tech youtubers
For just a quick list of some of the mistakes
listed tool that were "needed" but never actually used, non-grounded anti-static bracelet, installed ram wrong (single channel), install the PSU backwards (fan should face out the case), way too big of a PSU (650, or even 550 watts would have been fine), WAY too much thermal paste, motherboards really aren't as fragile as he implies.