ryvnon top of ping, time zones are also a pretty big issue. na scrim times would be around 3 am for euros (even though it's a bit friendlier for asia/oceania since that would be their afternoon if i'm not mistaken, but the ping would be even worse). i can imagine that's the most common reason why most people do not want to or simply cannot play in leagues outside of their region
i think u misunderstood the original post