But no, I'm pointing out that it seems like his conviction was already overturned, so what exactly is the complaint?
dante is exiled from a city he lovingly intersperses throughout his fiction in some of the most famous and beautiful and utterly complex poetry of all time by one of the most famously corrupt rulers in all of human history for things he wrote ~in his poems~ and over 700 years later the sum total of human technology allows someone to say his political conviction by a no longer existing state is justified because of these thought crimes on a site that notionally believes in freedom of speech or at the very least thought.
hope it is better wherever you are dante.
My main point remains "I think his conviction was already overturned, so there's no gesture left to for modern authorities to symbolically make".
The declaration you linked is symbolic only - and the Italian sources [0] indicate the plan this time is to look if the case can be re-tried in light of some new evidence.
[0] https://www.corriere.it/cronache/21_gennaio_31/contro-mio-av...