Seems to indicate they're not actually trying to prevent their citizens from doing anything in particular, they're just trying to get these international companies to follow their local laws since they operate there.
From experience, this is a symptom of them wanting to censor a specific piece of content which is on all those platforms. Look for it, you may discover something interesting.
I live in Tunisia, which had one of the most censored internet in the world before 2011.
I had a quick look at the maps I could find that indicated the locations of Mastodon server instances, and I was not able to find anything local to their - of course that's not to say there is not one or more. It is important to the network that there should be many Mastodon instances, in many places, so it would be great if there were some!