I'm not really sure what you are trying to argue here. Your bullet points are equally applicable to "alternative" media outlets and "mainstream" media do often link out to government reports, sources, etc in their articles.
95%+ of MSM articles I read that reference an external document do not link to it. MSM articles are usually littered with links, but they're internal links to lists of other articles by the same MSM outlet about the topic. Meanwhile, the idea of a blogger or YouTuber doing this - just, say, declaring that the government has announced something without providing any corroboration - is basically unimaginable to me; I've never seen it happen as far as I can recall.
This is literally what Alex Jones does.