I just started reading it, he directly says it's a different system and not just a mutation on the second page

In the years after it was published, first in Greek, later in English, my weird hypothesis that capitalism was on the way out (and not merely undergoing one of its many impressive metamorphoses) gathered strength...

So, what is my hypothesis? It is that capitalism is now dead, in the sense that its dynamics no longer govern our economies. In that role it has been replaced by something fundamentally different, which I call technofeudalism.

You are correct in your edit. Many things in the book made sense. I enjoyed reading it.