Vilemaw no global sounds on death?

So in 5.14, Baron and Dragon were able to get global death sounds. At the time I was like, okay sure that pretty cool. Recently, my friends and I created a 3's ranked team, and if Vilemaw is killed, there is no death sounds for it, unlike his/her Summoner's Rift counterpart+dragon. Riot, why you got to discriminate? This is a monster that does the Carlton for crying out loud.