Sure. In short - by the 70's, soviet intelligentsia (that is artists, media people, scientists, etc) have perhaps not gotten anti-soviet, but started expressing it. Look no further than the ultra popular (at the time at least) Eldar Ryazanov. It started slowly. A lot was legitimate criticism - bureaucracy for example. But it built up and built up, until they started out churning outright anti-communist movies, like "Dog's heart", which made an absolute mockery of the October revolution, of the people who made it happen and of the subsequent rebuilding.

Now, so what, you might ask. It's just some pissy actors being pissy, happens everywhere. Problem is, basis and superstructure are interlinked, one informs the other. And the superstructure for socialist way was giving way to anti-communist one, just as the market reforms were speeding up.

Lo and behold, 1991 pop goes the weasel.