Getting a representative sample of user responses for this survey would have required surfacing the survey in WordPress admin for all users. Publishing and promoting the survey on the web and through social media disproportionally favors developers and people who are heavily involved in the WordPress community, just as the results show. I agree with Matt that these results should have no bearing on the future development of the editor simply because they are of no statistical significance.

That said, survey results like these hint at the need for proper data gathering, both in the form of telemetry (which would give us accurate data on actual use of the distraction free writing mode and other features) and statistically sound surveys that poll the community in a scientific way.