After all the nerfs Ornn is no longer dominating pro play and his soloQ stats are abysmal. Extremely bad winrate accompanied by low pick- and banrate definitely doesnt make him look OP. Sure there are champions that can be OP with 47% winrate, but those are usually stuff like Azir that are extremely hard to play. Ornn simply isn't so mechanically demanding that he would be balanced with something like 45% winrate.
There is no communication with us about why this champ is looking to get absolutely trashed when the already numerous older nerfs stopped him from being a balance problem. Yea he is still getting picked in pro play, but thats not enough reasoning to nerf a champion as most of the other picks in pro games perform way better in soloQ and are not getting nerfed.
I have no idea how it is possible to still consider ornn overpowered. Id love to at least hear riots take on why they would castrate a champion who is already doing so poorly in soloQ and who doesnt break pro games. As a player it feels really discouraging to have a champion you love just get ruined for seemingly no reason and with no communication.