Why would you run around in humanoid form for that long in the first place when you can simply line up 5 combo point finisher for instant cc? It would balance things out if it wasn't for that instant cyclon (gl getting a cast in that split moment of time).
It's called getting stunned as you shift, if you have a cancelform/form macro, it shifts you into caster and you're stuck in it. Throw this on top of having to spam shift to break snares, and it happens more often than you'd think.
Most people are just uneducated about ferals. Shrug.