While I also personally don't use social media for mental health reasons, I don't feel the shorts format is any worse than any other media format for distributing information. I'll elaborate.
The "shorts" format is essentially a meme is video format. Short. Concise. To the point. Ideally witty or catching (depending on the skill of the creator). And what is a meme to a Communist? It is agitprop.
Memes are to the early 21st century Communist what Agitprop was to Bolshevic revolutionary. If the "shorts" format is a meme (or modern agitprop) in video form, we cannot afford to dismiss it as Communists looking to organize.
Say what you will, but Fascists are very good at using modern methods for spreading their bullshit, and it works. If we remain stuck using early 20th century methods, we'll stay far behind amd our world will suffer for it.
The "shorts" video format has a place, just like every other form of messaging.