I don't think it's fair to characterize the people the author talks about as children raised under privileged circumstances necessarily. Many working class people, mothers who had plenty of support in raising kids, people who enjoyed relatively egalitarian and free education for the first time and so on have legitimately good memories, and are today some of the most dissatisfied with the state of affairs. In particular the role of women seems to have been mostly lost. When the East had already granted reproductive rights, women in the West got abortions in the Netherlands.
This is generally written off as "Ostalgie" (pun on nostalgia) in exactly the same way the author describes.
You just described the situation everywhere, Communist or Capitalist or Whateverist system.
Of course not everyone was thrown into prison, or stood in breadlines. Experiences depended on your relative social standing under the old regime and how that social standing was viewed under the new regime. The revolution for the laborers, but the most successful labors? Blood enemies of the people.
Plenty of people were born into relative privilege under the communist system. Children who quietly got to go to foreign universities, while their parents talked about the need for the lower classes to sacrifice their children for the revolution. Those same children who now run very successful businesses thanks to their family connections.
And there was the flip side, which the author doesn’t like the focus on. The ones who were successful businessmen or even farmers but after the revolution thrown into prison as “dangerous counter revolutionaries”. Or the families of that person who had to pay penance for their bloodlines sins - their children denied an education. Of course the assets stripped from the family were given to the “people”, the the most generous portion reserved for those most loyal to the revolution.