For example, in the passive sentence "The tree was pulled down", the subject (the tree) denotes the patient rather than the agent of the action. In contrast, the sentences "Someone pulled down the tree" and "The tree is down" are active sentences.
I don't even agree with that point. "Some of you will leave Shopify today" is a lot more blunt than the quasi-euphemistic term "laid off". Someone is really stretching for outrage.