I can pick up a little bit of what Mr. Sall is saying because of my high school French and our St. Lucian French lexicon Creole (Kweyol) however it would have been very good if there were English captions or a translated transcipt that one can read.
I say this as I recognize that there are somewhat separate or separated movements in African Liberation which can all benefit from mutual exchange which does not have to go through the vagaries of what is considered profitable in certain circles.
I hope that some African Institution would find it useful to translate such works.
I heard of Mr. Sall as well as Mr Aboubacry Moussa Lam through a talk by Mr. Ayi Kwei Armah, as ones who were continuing the work of Dr. Cheikh Anta Diop and I am sure that there are many more writing and speaking in Portuguese, Spanish etc. I also believe that some of those in English need to be translated into some of these languages as well as an ultimately to a significant extent in Indigenous African languages and in the languages which we have formed or contributed to forming in the Diaspora.