A Question about the DFG topic

DFG was an ITEM yes it added burst but this game is unique. It has tons of champions, strategies, team comps, etc. So just because a few mages liked using DFG, why add compensation? The champions are designed to do their own thing because they have a kit to answer the things they need. If someone "needed" DFG as a core item, what is the point? Whats the point of a champion if DFG is NEEDED. The point is the item was too strong and basically formed that champion to get kills and succeed if they and could pull off the DFG burst. I did not like the ahri changes, she was way stronger after the DFG removal and still is stupidly strong. I just think DFG was a stupid item and it made mages do absurd amounts of damage, if you really wanted them to do that much buff them, then you can realize they will be too strong because they "needed" the compensation.