The Sona's base stas bug is back, it seems like my last post about this wasn't taken seriously. So I'm here with proof. A comparision with two screenshots, one from the patch and another one from an in-game early this morning with no runes and masteries.
Hopefuly this gets fixed, again, soon.
Why hasn't this been addressed?
You seemed to have completely missed that entire paragraph explaining the reasoning behind the stat changes.
Unfortunately, Sona went through a small update during the time we were working on her skin, so she's gone back to all of her old base stats pre-champion update. While we considered shipping 5.3 with Sona disabled, we don't think the full extent of these changes merits taking her away from so many, so we're just fully communicating what's happened while we work on a bugfix as soon as possible.
The stats crossed out in red are what her stats are supposed to be (post-champion update through 5.1). The stats on the right with the arrow pointing to them are what they were changed to (pre-champion update) while they worked on a fix which appears to have been hotfixed already according to your screenshot.
