Cross communication should never be allowed, in any multi faction game. Thus by Blizzard's standards it will happen, as they continue to break this game from it's original form. And dumb the game down more each time.
Ugh. Cross-communication only helps break the 4th wall, the stage illusion that 2 factions are in conflict. Are they in conflict? No they speak different languages? Yet they can talk to one another. Ugh.
A mess of a proposed change. Ugh.