These are players who farm for 2k - 5k clan wins. They do it to receive 150 tokens in total and 1 premium box. These rewards are better than the top clans' rewards that give 1-2 rare/epic items and power kits.
Changing the rewards for top clans could motivate smurfs to start trying for Arena Points instead of Clan wins BUT "Boosters" will get them all unfairly.
The only news about the game were the banwaves so, I don't think that something will change. Learn to play with them.Sadly that's the only choice.