I feel like you're responding to your preconceived notions instead of the video I linked because it's very clear there is nothing anti-hierarchical about it.

Philosophically it's closer to fascism in stating that different stratas of society should work together towards common goals.

Ultimately National Socialism is little more than a philosophic framework - which is why National Socialist economic policies look schizophrenic. The unifying principle was "is what's happening good for the people overall". If it wasn't the government intervened without any concern about rigorously applying a particular economic framework. In reality the term socialism was co-opted because it was a buzzword at the time. The definition applied was vastly different.

https://files.catbox.moe/mwbl5r.jpg