It may all be bullshit. I've used manure on my garden years ago
when bothered with a garden. I shoveled a lot of horse shit into
my brother's truck. We dumped it on the garden plot, covered it
with plastic, turned it over with shovels three months later and
planted. Best tomatoes ever.
So, there's value in bullshit. It's all what you want to do with
it.
But... I tend towards being a pragmatist. Part of my cultural
heritage I suppose.