Part of this is that YouTube makes this viable only for creators whose inbound viewers are likely to stay to watch a majority of the content; otherwise, the alg

Part of this is that YouTube makes this viable only for creators whose inbound viewers are likely to stay to watch a majority of the content; otherwise, the algorithm penalizes your content for every "bounce." A comedy short that'll attract people who like comedy shorts, and will be over before many people bounce? A long-form science documentary that's likely only going to be clicked by someone who wants to watch a long-form science documentary? Both meet this criterion. But any kind of traditional filmmaking with longer character arcs will be penalized, and that's a really hard thing to see for your creation's primary distribution channel.