Fuck marketing and SEO garbage or editing, what Youtubers really need to learn is how to do voice work so they don't sound annoying or stilted from reading off a script or fuck their audio from using their equipment wrong. I think its pretty common that if the audio is grating, you want to stop listening. I don't know why people in this community can't realize how much your audio effects your content. All the editing in the world doesn't matter if people click off your video because of your annoying voice.
Edit: I think Birdy Brad does a good job and he is one of the better ones, I think he just gets lazy, which I get because its a job.