I don't know if the original meme meant to exclude Soviet media, but I presume the snark is against US media commie Demon-crat librul media being "silent" about Stalin. It's hard to guess what goes on in the mind of idiot wing nut meme makers.
And as to Soviet propaganda skill level? Pure genius, especially at the start. Fuck, they basically invented modern advertising with their methods, and were consulted by western marketing execs for tips and tricks!