He's actually at around 48% in our data, but I agree he's too weak right now and am pushing for a buff for him. The point of the changes were to make it possible for us to actually buff him, which in my mind were a success because he's actually in a state where we CAN.
I never expected the balance to be perfect immediately after the changes, in fact I was surprised at how much we gained from them by themselves, but he's shifted down a bit over time.
Imo often people are too quick to conflate a champion literally just being underpowered with having some severe design problem. If we can get him a 2-3% buff he's going to feel a lot better, and hopefully not be at 100% pro presence again.
Edit just to add, before the changes he was sitting at around 44%, but was unbuffable because of his pro presence.