So, Interject...mostly useless?

[Shurrikhan]

What do you all think?

1. That it ought to activate much sooner, and likely have its animation replaced for something a lot snappier than 3.x Delirium.
2. That if something sounds like a spell and deals magical damage, unless it ought be outright immune as per a boss, than it should be interruptable, just as I would have hoped for from the Silence effects it replaced (which obviously had the same issue).
3. Ideally, it should double as a Pacify as well, since that DR system has been otherwise removed.