Thank you for sharing!
Do you realize that what you shared doesn't argue that Marxism-Leninism is not authoritarian, but instead just reframes it as necessarily authoritarian?
As in, it implies authoritarianism is necessary to achieve communism. Argue that it is good, necessary, be my guest, but it is authoritarian.
I will leave you with an excerpt from the writing you shared which resonated with me deeply, and highlights essentially the root issue I have with MLs:
A revolution is certainly the most authoritarian thing there is; it is the act whereby one part of the population imposes its will upon the other part by means of rifles, bayonets and cannon