This article is so convoluted, it's hard to figure out anything more complicated than the Soviet Union wanted to provoke what became the Six Day War to destroy Israel. I've never figured out why it was that the Soviet Union wanted to destroy Israel, but it is consistent with their later actions in 1973.
I don't think the Soviets cared about the existence of Israel, as such. An Arab war with Israel was just an excuse for the Soviets to intervene, and insert large numbers of troops into the ME.