Earlier quoted context omitted.
They also say, "We're in the business of making software, and a few tangential things that touch that edge." Advocacy on the policies of one of the world's foremost software distribution gatekeeper seems well within how they define "their business". I don't think it takes much squinting to see how they can view this sort of advocacy as in their lane, while the popular political discussions of the day are not.
In other words, “some political advocacies are good for our business and some are not. As a result, let’s ban all of them.”
> Note that we will continue to engage in politics that directly relate to our business or products. This means topics like antitrust, privacy, employee surveillance. If you're in doubt as to whether something falls within those lines or not, please, again, reach out for guidance.