Diamond Rafaam endless emote spam? Surely not a feature

Diamond Rafaam spamming endless (obnoxiously loud) emotes. “It is too late, you cannot stop me!”. Where is the limit to emote spam? Surely this is not intended. If it’s a bug, maybe mal ganis breaks the hero portrait. He had just spawned it from deck with the new play 2 demons from deck spell before starting to spam it.

If you click on the portrait of the opponent you can mute all emotes.

Just in case :
There’s no emote limit when challenging a friend.
So if it’s what you were doing, that’s normal.
Otherwise, nevermind.