Imo, the only hope Soviet Union had to exist intact for the long haul was to not be communist in the first place.
The entire ideology is contrary to human nature and has always failed because it is a concept that can not succeed.
The author of the article agrees with you. From the article:
“I don’t believe that Trotsky, or Kirov or Bukharin could have saved the Soviet Union, because the USSR was based on a lie at its very foundation. We can all be glad that history, and maybe a dash of divine providence, obviated any of the alternate paths here. But we had best think about them, because we once again face enemies overseas dedicated to the destruction of our ideas and values.”
Funny thing is there are corporate collectives in the USA today, including the 2nd largest (employee "owned") bank in Colorado, that essentially operate under Jesuit/Marxist doctrine.
The easiest way for Soviet Union to survive?
Simple:
Don't get sucked into the delusional arms race for the benefit of the enterprise General/President Eisenhower tried to warn Americans about: