If the accident was in 1982, I don't think attributing it solely to events at its construction in the 1960s is fair.
Construction issues could have been recognize and addressed in any of the intervening ~20 years.
And yes, chasing parity with the US did lead to unsustainable Soviet military GDP allocations, ultimately empowering Gorbachev with an economically- rather than ideologically-derived mandate and thus leading to the dissolution of the Soviet Union.
It's a fair argument as to whether or not this was intentionally engineered, but it's a fact that the Soviets spent roughly twice as much of their GDP on their military, and that the Soviet Union eventually collapsed for economic reasons.
Soviet military spending by year: https://nintil.com/2016/05/31/the-soviet-union-military-spen...
Reallocation example under Gorbachev: http://www.nytimes.com/1989/05/31/world/soviet-military-budg...