I disagree.
The problem here is that despite all these yrs of democracy in play, there is no consensus on how long should a country take in transitioning from a dictatorship to a democracy.
Amazon.com: Reagan at Reykjavik: Forty-Eight Hours That Ended the Cold War (9780062310194): Ken Adelman: Books
I have that excellent book on my shelf and it was fascinating on how Gorbachev admitted to Reagan on the sad status of the Soviet Union at that time. For Gorbachev, it was as if he was resigned to what he believed was inevitable: the collapse of the Soviet Union.
That collapse was inevitable in the sense that the Soviet Union's economic decline have been going on too long. Like an old tree, the roots of corruption, inefficiency, and worst of all the disillusion of the Soviet people about the Soviet system as a moral foundation for the existence of the Soviet Union as a state, went too deep for gradual reforms.
We in America have no doubts on what we are -- a functional democracy. No matter how flawed, it is a functional democracy. We kept working at it because we believe in the moral foundation that contains democratic and capitalist principles. The bottom line that Gorbachev realized a long time ago, before he became General Secretary of the Communist Party of the Soviet Union, was that no one inside the Soviet system believed in Marx and Lenin and their associated -isms any more. Hence, no one worked at refining Marxist and Leninist thoughts. No one except Marxists living in the West while trying to subvert it. The result: Everyone that had any interests in the Soviet system became opportunists working hard to preserve their place inside that rotten system for as long as they can with the goal of one day being able to leave that system.
So if I read Gorbachev correctly, if it was not perestroika and glasnost, it would have been the rot within, and the rot was so pernicious that the introduction of reforms, no matter how measured, would have initiate the collapse at the same speed that we have seen.
In my little library at home, I have two bookcases, each 6ft tall, and both filled with books about Russia, China, and Japan. I call them my 'RCJ' section of my basement library. Viktor Belenko was the first to pique my interests about the Soviet Union when I was active duty and I have been going since. I try to have as many variety of opinions about Russia as possible and I have perspectives from reporters such as Andrew Nagorski's
Reluctant Farewell, to diplomats to immigrants to politicians. Without a nuclear war, the collapse of the Soviet Union when in direct competition with the Western countries was inevitable. All we had to do was keep up the pressure in every aspects of that competition: scientific, cultural, military, espionage, alliances, economics, and so on.