I guess it's possible there are just some gremlins adding to inconsistency, which magnifies the frustration that we so rarely get a straight answer from the devs.
As an example, with Blota I'll sometimes get the chain animation indicating I've snagged something in range, then it just vanishes. What does that mean exactly? Something has clearly been detected. Did it just time simultaneously with the target hitting purify? It's like the business with the skill "working" since it goes on CD, but nothing absolutely happening.
We've always had to work around issues like this to some extent, but there are now multiple situations where we simply don't know what's going on. Or at least I don't.