Nuance would make the points stronger, not weaker. If you complain about something while assuming everyone should agree with you without question, you are not contributing to the conversation, but merely whining.
Sure, but including more groups of exploited workers wouldn't have made the author's point more nuanced. And ironically, throwing around baseless accusations (like "you just ordered DoorDash" and "if you actually cared about the environment") will only serve to make the conversation less nuanced.