I absolutely agree with your first paragraph, but regarding the second the low bandwidth on text compared to audio sometimes means a lot of information is left out.
A lot of times when discussing something here (or anywhere in text) I see something I'm fairly convinced is wrong, but it's apparent that it's misunderstood many steps back, and I just don't bother if I'm not up for writing a wall of text of premise before getting to how that leads to my point.
(And I'm sure vice versa is true equally often)
Audio really helps here, but it's less searchable and accessible post facto, and it requires simultaneous presence.