The World Cup's new high tech balls

I'm not football expert and know nothing and didn't really like/dislike it. Just wondering with this high tech and the game still have unfair decision like offside, goal and whatnot. Hope they just don't depend on referee for this and just watch the replays for more solid decision.
Or vote between themselves for the decision, so the lead referee can't use his "power".
Or it didn't change anything? I don't know