I make it clear that this line of thought stems from Nietzsche's Wagner Period [late 1860s to mid 1870s], when he was clearly a Nationalist - BGE was written ten years after this Wagner Period: in BGE he puts forward the political position of a Good Europe ruled by a Noble caste of Philosopher Commanders atop a technical class and a Slave mass.

One should note that 'Philotyranny' is common amongst thinkers; not only on the Right, but the Left too.
Those influenced by Nietzsche in the 20th century took a philotyrannous route.
Heidegger is well known, as is Carl Schmidt; but we note that Foucault flirted with Stalinism before becoming partial to Muslim Fundamentalism in the Ayatollah's Iran. Even Derrida is said to have made a 'Tyrant' out of Justice.
I believe that Karl Popper wrote a book indicting all the great names in Western philosophy for their philotyranny.

The "many" have accused Heidegger of systematising Nietzsche - I avoid "the many"; I would say that Heidegger's work on Nietzsche is a deep and detailed meditation on Nietzsche, which pays especial attention to Nietzsche's unfinished work, the 'Will To Power'.
I don't find it a systematisation, indeed, I would say that Nietzsche's work does not ALLOW of a systematising [and I've yet to see one - not that I'm looking too hard!].

Heidegger's linkage of 'Dasein', the key concept of his philosophy, with the Revolution speaks volumes. Indeed;
"Several readers, including Derrida, have identified in Heidegger's politics a bid to construct an ideal sm, maybe purer, more stringent and more radical that the actually existing version".
[Collins,'Heidegger and the s']

One could say that of Nietzsche in relation to Prussianism.

What puzzles me most is that no one would dream of saying that Plato's, or Aristotle's, or Hegel's political philosophy was unconnected with their ontology, aesthetics, or metaphysics etc., - so why say that about Heidegger, and even Nietzsche?
Why indeed!