>>29227
I also have thoughts on this.
First as a reply to you:
I think Russian historians (even of our day and age) has reasons to downplay the importance of this mutual assistance, maybe there's even an expectations from the circles of authority and even some pressure from the people who feels nostalgic to the Soviet state and regime. This expectation and pressure might not be said out loud, but researchers themselves might feel they better correct their opinions on this.
Nazi Germany was inflated into this great monster, a boogeyman, an untouchable and everyone who has something to lose tries to distance himself from it. And especially in a country which fought the Great Patriotic War against it, it might be an uncomfortable truth, that before that happened there was an agreement which benefited both sides. The Molotov-Ribbentrop pact has this darkening shadow too.

And my other thoughts:
What is more important that due to this assistance Stalin and his marry band of pranksters and trolls could exactly know what situation Germany is in. This might support Suvorov's theory, that Hitler was played by Stalin big time.
I haven't read all Brasilbernd's posts so maybe this will come up, but the German leadership/Hitler was right to attack the Soviet Union even tho they weren't prepared for the task. They had one chance, they made their bet, they might calculated the odds wrong but even if they saw it clear, there were no other choice.