With recent changes to the Scoreboard Objective packet (http://wiki.vg/Pre-release_protocol#Scoreboard_Objective) it breaks support for serverside modifications to allow changing the objective's (visible) display name without resetting it.

This means that all information regarding that objective (that being teams, scores, ...) would have to be resend.

While I am fully aware this was never possible with commands - there seem to be no disadvantages in keeping the ability to allow updates to the display name.

Modding a game has always been a fun aspect of Minecraft. Being able to perform modifications server side without interaction of the user (such as updating the visible display name) is/was even more amazing.