^{Update by Auldrick}
In conversation on Discord, it appears that the issue is that when a PVP player is killed in Java Edition, it is knocked back and its death animation occurs a little distance away, but that this knocking back does not happen in Bedrock. It apparently doesn't significantly affect gameplay except for limiting the surviving players' view of the arena.

Original description:

As the bedrock edition of the game becomes the new primary version i believe you need to make it look and feel like the old Java edition of the game.
There is one thing that really affects the old PVP community on that edition and that is...
Knockback! Knockback in the bedrock version of the game is completely BROKEN you can litteraly make someone fly using your fist.