I confirm that.
And there is sometime a latency, like you can't do instant spells when you want, there is an unbearable gap for no reasons that totally fucks up what you want to do, it does it with shadowfury of course, even if i think it will be harder to fix than the gcd stuff.
Also the gcd for Curse of elements is too long, it's not like it was during mop, it should last 0.5 sec basically when it last 1 seconds ( invisible, you can see the gcd end in 0.5 but you have to wait 0.5 more seconds to do the next spell )