Without a wish to elaborate entire diplomatic prelude to WW2, I would say that, although questionable on the grounds of morality, the pact was undoubtedly a Soviet diplomatic success. It delayed the inevitable conflict with Nazi Germany, but also offered a chance to reclaim some territories lost after the WW1 and to create additional "buffer" zone in the west. In that sense I more-less agree with what is written in the text.
Anyone notice the red star national insignia on the tanks?
If you refer to the insignia seen on this Armata tank for example (picture 1 in the attachment), it's the stylized red star superimposed on the "Georgiyevski" ribbon (The Ribbon of Saint George), which is the symbol of victory. The same insignia was applied to all vehicles participating in the parade. On Victory Day the ribbon is also widely worn by soldiers and civilians alike.
On the side note, the red star is not a Russian national insignia for some time now. It was changed by adding a blue outline as a reference to the Russian national colors (white-blue-red). See the picture 2 in the attachment.
Meanwhile, in Crimea, billboards picturing Uncle Joe are popping up celebrating his awesome legacy of beating the Nazis and industrializing Russia.
That would be like Hitler popping up on billboards in Germany celebrating his legacy of bringing Germany out of post-WWI ruin and building nifty autobahns all over Europe.
How soon they forget...
As a regard to this and few similar posts from previous page I would say that, you are comparing apples and oranges here. You can think about Stalin and his life and work whatever you like, but to my opinion if anyone else had been in charge the Soviet Union would have collapsed in 1941 and the history would have taken completely different turn. Believe me the Russians remember their past very well.
Here's something regarding the Russian mentality, the impact WW2 had on them as a nation and the place it holds in their collective memory -
Immortal Regiment rally in Russia (picture 3). Haven't notice this was much publicized in media. See the link below...
TASS: Russia - Immortal Regiment rally in Russia