When you think about it, the Light Suit is basically the Chozo and Luminoth turning Samus into a living, breathing beacon of hope for the future. After the Dark Suit turned Samus into a badass dark knight, the Light Suit is graceful, beautiful, and more than capable of kicking copious amounts of ass, like Samus herself.
It's touted as the perfect fusion of Chozo and Luminoth technology, and rightfully so, as Samus is completely immune to Dark Aether's corrosive effects, and the suit is constantly glowing. the suit itself, combined with it being worn by Samus, is totally awesome. Which would've killed them anyway, since they were dark beings that couldn't exist in the light. Dark Aether is gone by the time they attempt to escape into Aether. Their plan fails as Samus outmaneuvers them and escapes to the light world right before the dimension goes.
She pretty much ignores them and walks out the door, giving a sort of lazy salute/wave without turning to face them as she leaves. After saving their planet and their lives, Samus gets a bow from the crowd of Luminoth that gather to greet her after the final boss. As awesome as all of that is, the real Moment of Awesome is when, after you've carried out their final wish and returned the Light of Aether to their temples, these elite Luminoth warriors, heroic titans in the struggle between light and dark, bow to Samus Aran, acknowledging her as the new Sentinel of their temple. And the one in the Sanctuary Fortress was so badass, the Ing had to turn his own weapons of war against him, unable to defeat him themselves. The one in Torvus was almost possessed numerous times, until the Ing realized that they couldn't break his will and killed him.
The one in Agon died while fending off innumerable Ing hordes, finally succumbing to superior numbers. Scans reveal, for every one of them, that they went out fighting.