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Lets be honest: IV's are just needless RNG which doesn't even achieve its intended effect of making lil Timmy feel special about his pokemon. They shouldn't be in the game and genning is a 100% legitamate response.
Hidden abilities should be available through breeding, even if none of the parents have it. None of this "you need to get it through an event which only takes place in the little village that resists the romans and than use that parent to breed" bullshit.
EV's were done best in XY with that football and training minigame were your average Joe didn't need an online guide for which magical animal they need to genocide to get the best results.
Shinies being RNG is completely fine, there is nothing competative about your Charizard being black instead of red.