So what happened in luclin-pop?

[Philss]

Short story : im an old mmo player started with ultima online late 90s but i wasnt able to play everquest because my computer couldnt run it and my parent couldnt affort a better one ( i was 15 when eq was released .)

Just started here and im having alot of fun .
So my question is , what changed so much in luclin pop? Why is p99 locked at velious?

I did read about the xp on wiki but id like some player perspective.