Seriously, what is the big deal about having an interrupt or not? You realise it's just like a stun only not as effective, only working on certain classes and not even shutting them out completely? I believe the obsession with interrupts is due to people feeling overly proud of themselves after interrupting a cast, not about the interrupt having any significant practical use compared to other abilities. Not every class needs an interrupt. IMO something better to be lobbying for is the removal of auto-tracking when casting abilities.