To be clear, I was not talking about Odin specifically. This is about notability in general.

>where those third-party sources are themselves notable and reputable (in the subject area)

this is where the bias kicks in. It would be great if Wikipedia's notability goes "All youtube sources are not reliable" but instead its always phrased like "Some Youtube sources are not reliable" and what qualifies as this "some" is usually decided by the personal bias of the admins.