People who had previous or older gen consoles will most probably call it that way anyhow, because it is the pause button(with exceptions), I don't see the reason for anyone to "fight" about something like this.
@ChaolanLegacy You'd be surprised. This wouldn't be out the window just yet. "No! it's the options button! wrong" - "Uhh, still pauses the game so it's still a pause button bro". Lol.