I just did a run that went 11-2 and it didn’t proc once. So unless I am the luckiest/unluckiest person alive, it’s bugged.
In a single game, there’s a 75% chance that Cho’Gall won’t trigger.
In 13 consecutive games, the chance of never getting an anomaly is 0.75 ^ 13, or approximately 2.5%. Two and a half percent is not a lot, but far from “(un)luckiest alive”.
Yes obviously it was an exaggeration. It’s a figure of speech. Asking on a forum is a way to check whether it was actually in that 2.5% or if it’s just bugged.