In the video, you can see, that the redstone link and the funnel remain powered even though there is no longer a power source.

seems like some weird sort of quasi-connectivity

Everyone can rebuild it themselves and try it out.

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.