Was Wu Kong's special secretly nerfed?

[Brobb]

Wu Kong misses a lot more since a patch couple of weeks ago

I’ve noticed that Wu Kong’s debuff is actually missing way more than 35% of the time. I’ve measured this during 10 games and the miss chance was around 50% - 55% Is this a bug?

@Rook, can you merge these threads? There is a response from @Petri in the other.