Slumber Party Event Questions

I figured I would ask about this topic mostly because I haven't found too many details to the topic, but why does EU only get this event and have certain places gotten other events like this too because I would love to have this event happen in my region! I would invite all om my friends over for a lan party! It sucks to see only EU get this event and not NA and others too. This weekend is going to suck knowing that EU is having a dam slumber party and possibly a Ip party and im sitting at home all alone with no event. I don't believe that riot has mentioned any hopes that this will come to other places besides EU servers. Sometimes I compare league to Smite (probably the worst thing to say on the LOL boards) but I wish that league could have more events this would give more reasons to play the game and have fun while doing it. I used to play Smite A LOT just for this reason. Being able to go on twitter and see that smite is having a double worshiper weekend or whatever made me what to play the game hours on end with my friends and I would love to see league do similar events. I'm not gonna ask why they don't or why they can't cause i'm sure they have their reasons, but I would love ip events over some of the RGMs that we have now. Not saying the aren't fun and all, but would love a slight change for once something like the slumber party event! Events like this could really change the way people play and could possibly get more people to join and play the game. It's just a concept I would love to see come out and would love to be apart of this event. Oh and if nobody agrees with me on the events then can we all just agree that a dino gnar onesie needs to come out. Thank you for your time and let me know what you think down below!