Warden sonic boom death message always shows "...whilst trying to escape Warden", even though no one else attacks you

The new death message of when you died from the Warden's sonic boom always shows the longer version of it, instead of the shorter one. It should only show "Player was obliterated by a sonically-charged shriek" when no one else attacks you.

How to Reproduce
1. Spawn a Warden inside an enclosure
2. Try to anger it
3. Wait until the Warden sonic attacks you until you die.

Observed Result
The death message always shows "Player was obliterated by a sonically-charged shriek whilst trying to escape Warden", despite no one else other than the Warden is attacking the player

Expected Result
The death message should only show "Player was obliterated by a sonically-charged shriek", when no other mob or player attacks you.