it was gromyko that spearheaded the very temporary pro israel position, Stalin did not. The Pan-arab movement at that time was also being subverted by the british (until Nazzer created an actual pan-arab ideology). It was bad, but soviets fully and absolutely denounced zionism soon after the Nabka. Stalin was anti-zionist his whole life, but this part is where the politburo overruled him. Although he could have pushed harder against it.