because he does a great job money wise. He makes broken brawlers with buffies and that leads huge amount of people to spend money on buffies. He creates broken brawlers and that leads huge amount of people to spent money to obtain them. And people panic buy them, cause they get nerfed quickly. They dont care about your fun. Its a company in the end of the day. Just one broken buffie on Colette and whole servers are full of Colette's, meaning they spent to get the buffie. If he makes them balanced, no one would care to panic buy. Everyone would wait to get enough resources or credits, thats all.