How Mindvalley Added 235,000 Subscribers (in 6 Months) by Treating YouTube like a Search Engine

A couple interesting things I learned from this article:

YouTube is the second largest search engine (behind Google). Not mentioned directly in this article but I got curious and while this is probably obvious, I doubt many treat YouTube like a search engine in their growth efforts. So many more companies could be taking advantage of this.
Get really good at creating one type of resource to draw in traffic and actually invest the time and resources to making that growth channel great. Committing to a type of resource and channel will yield much higher results than spreading around limited resources to different content types and platforms.

Anything else I missed?