>>720523290
That's how they've been since Natlan. Natlan's entire exploration buff was solely tied to the 5*s and if you didn't have them you had to use the animals. These buffs themselves aren't super huge enormous gamechanging things, it just lets you do stuff like have a thundercloud strike the enemy for Lunar-Charged instead of just being a DoT electric effect, and Lunar-Bloom buffs the damage of the Blooms in all their combinations causing them to do like 10% more damage and crit.