I wouldn't say nothing's happening. Or even that there's no caution. I mean it cautions that the .io domain might cease to exist (though that's unlikely since it's such a money maker).
Right now the UK owns it I think - but it could transfer to Mauritius. How much trouble would it be to have your domain registar change like this? Hard to say, but I suspect it wouldn't be a friction-free experience.
Finally, the history of the Indian Ocean domain and the islands finally being returned to Mauritius - it's good to see a historical wrong finally being corrected.