Communication ≠ politics.
Communication in engineering should rely on empirical data not personal opinion or vibes.
The post above only has one sentence where they make a unsupported claim that being involved in politics was necessary to have completed the feature.
The bridge example is to show that personal opinion has no place in projects and that workers should not capitulate to their superiors when they determine unsafe situations are occuring. The "shoddy bolt my boss designed" would be a stand in for whatever crummy practice people are being political about in a software project. From a shitty tech stack to bad project management practices.
Ego and politics is the death of a project.