people were worried about deepfakes with AI but instead the propaganda is doing pretty well, and arguably better, when it's not a deepfake but instead silly, catchy, youthful, and is playing up existing beliefs. The invasion is deeply unpopular in the US, and these videos only serve to amp that up.
The deepfakes haven't gotten really good yet. Give it a year.
Deepfakes were never necessary, people have been making incredible propaganda forever though the same few tactics. For instance, presenting footage out of context.