The disparition of champion from outside of runterra

So i something was in my mind since the freljord event : it seems that champions coming from other worlds (i'm not counting the void here) see their lore gradually rewritten, to make them a part of Runterra. It was the case with and , and i expect and to have their lore rewritten, so that they would from the past (it would make sense with Azir). Also, there are no longer new champions coming from another world. For me, this is good, as it allow for a developpement of the story of the world we play in and a better character developpent. What do you think ?