You must not ask for your use but for the company's benefit.
They want to promote those ball effects like they are promoting other useless items, e.g. the Plus and Premium badges. To their benefit, 100 strokes of effect are 250 cr, while a heart ball is about 90 cr for at least 100 strokes. And, you need a ball in addition to the effect, and the effect might use up on the green, too(?)
Mind you, this is marketing, and this is capitalism!