Local results are based primarily on relevance, distance, and prominence. These factors are combined to help find the best match for your search. For example, Google algorithms might decide that a business that's farther away from your location is more likely to have what you're looking for than a business that's closer, and therefore rank it higher in local results.
When digital marketing is what you do for a living, you often take for granted that probably 99% of people who use YouTube are NOT professional marketers. They’re just people who use YouTube for fun and as a place to share videos with friends and family. My point is that while your tips seem second nature to a professional video marketer, for the most part your average social media user has no idea about any of this stuff.