Diablo Immortal Reigning Harmony Cosmetic

With the Reigning Harmony Cosmetic, there is an effect that came with it that is temporary. Why can’t it be permanent? When people are spending thousands of dollars on on this game AFTER they buy the base game, the least Blizzard could do is let us keep the temporary effects that come with some of the cosmetics. We don’t even get an account wide stash which be a HUGE benefit to your player base.