That's, of course, awful.

However, Cuba is sitting right next to and under embargo by a hostile military hyperpower, actually the most hostile, militarised and aggressive power in the world, which seems to be in the business of constantly (directly or by proxy) attacking some-or-other country. It is, and has been for a while, controlled by a permanent deep-state 'Neocon' regime, always looking for excuses for the next attack, bombing, invasion, regime-replacement, ... These Neocons would love to use 'just helping the poor Cuban protesters' to then install some Zelensky-type ('friendly to US interests') puppet-government in Cuba.

Under these circumstances, trying to widen through social media anti-government protests (even non-CIA-funded ones) may be argued to present a real national danger to an independent Cuba.

That's probably the calculus behind that terrible Cuban Law that restricts the use of information 'through telecommunication/ICT infrastructures, platforms or services, of content that threatens the constitutional, social, and economic precepts of the State.'

Let's just hope that this kind of law does not become a thing everywhere.