Even though this is BMX
This guy take a Walmart bike and manages to break it within 5 mins because it wasn't put together right. The 2nd bike they go through it themselves and tighten everything up, and it actually holds up.
I worked at Walmart 15 years ago when I was out of High School. At that time they didn't care because all the bikes were sold on consignment. So if they broke they simply tossed it at no cost to them.