Restructuring is a capacious word. I would equate the word restructuring with the wordrevolution. Our transformations, the reforms mapped out at the April plenum and theXXVII Congress are a genuine revolution in the entire system of relations in society, inthe minds and hearts of people, in the psychology and understanding of the presentperiod, and, above all, in the tasks engendered by rapid scientific and technicalprogress.4
I think this is a very interesting quote that not only shows how the author gets his perspective across, but also how extreme the changes used to be back then.
The author gets his perspective across in a mostly objective and evidence-based way. The use of this quote (and many others throughout) shows that well. Instead of subjectively saying what his own opinion is that the reforms became more radical, he gives the primary source of Gorbachev's own words. This allows him to build a credible argument by not only pointing out that he believed the changes to be more and more extreme, but also by showing that Gorbachev himself believed so. He shows Gorbachev's personal and subjective viewpoint that simple reconstruction wasn't enough anymore.
That’s also why this quote itself reveals how extreme the changes got. Gorbachev himself changes wording from restructuring to revolution, which is something many people connect to things like the French Revolution, which were inherently violent. This really shows how he later on wasn't just trying to fix the economy by fighting the deeper issues, he wanted a genuine revolution of the entire system and society. The goal shifted into a complete psychological and also cultural transformation. This, among other things, also explains why the reforms caused opposition, as extreme changes almost always do.