The people making propaganda (and yes, this is propaganda) knows that people are not rational but emotional. The video targets emotions - that amazon shirks responsibility is an emotional appeal.

The hidden assumption is that there is some sort of responsibility that amazon ought to have, and that by shirking it, they're doing you harm. Instead of facts, they're listing things that give viewer a bad gut reaction like injury and accidents. The idea is already baked into the premise of the video, rather than propose a neutral question to the viewer; ala, at what level are a client responsible for the contractor's health and wellbeing. Why don't they ask this for tradies and plumbers?