To Michael, the 'loss' of 2,000 Soultrait Symbols and a few million SoulStar Fragments didn't make a great impact. It was still considered a lot, but a few million SoulStar Fragments weren't enough for Michael to do anything special. However, the Soultrait Symbols and SoulStar Fragments impacted the hundreds of Divine Lifeforms heavily and granted various benefits.
Adding several hundred Divine Lifeforms to the attack on the Novix Galaxy changed a lot, but the tides of the Titan War changed only properly once the hundreds of Divine Lifeforms had accepted their most compatible Soultraits. It took an entire day to switch the Soultraits and optimize everyone's combat prowess, but the results were great. Michael threw the hundreds of Divine Lifeforms at the civilizations of the Supreme Human Alliance and watched them conquer several planetary systems in a few days.