If a player dies whilst being AFK (logged-in server side, either with /afk
or by disconnecting shortly after being attacked) and then that player logs in, no death message is displayed as shown in the video even though the player did die.
This means a player could log in after death and not know the cause of said death, especially if the time span between death and login was very long (minutes or even hours).
By contrast, if a player goes AFK but remains truly connected for the same time frame, and the player dies during that time, the death message will remain on the death screen, in chat, and in the client logs.