Im okay with baseline interrupt but our pet must never lose it.
In M+…
I can be casting Chaos Bolt, Cata and doing my rotation and mouse-over interrupt at the same time. The target can be behind me, off to the side or in Africa (adds in Streets, boss in Stonevault)… or you are CC’d in Streets 1st boss when you pull trash into it.. can still kick casters. If you are not playing this way, you won’t appreciate how good it is to have interrupt on pet.
you don’t give up anything to interrupt.