A quick search doesn’t find it in either the Canada or United States versions, for example. I wonder if that’s due to better consumer protection laws in some jurisdictions than others.
Now that I think about it, it might not even be consumer protection but instead a GDPR issue. I'm in Europe. Users becoming inactive can actually force companies to delete their data. Ubisoft might not have any other choice than to completely delete inactive users and of course they'll do what is best for them, not for the inactive users.