Do you view the Warrior of Light as a blood knight like Zenos?
Mayhap not as cruel or sadistic, but yet a thrillseeker longing for the time between the seconds. With each version update, we are given new challenges to face. Many of which are the deiform manifestation of someone else's grievances with the world we gleefully beat up for the thrill of battle (plus trophies like weapons).
Zenos asked the beast to live, endure, become stronger; and the Warrior of Light obliged. Zenos then hijacked the embodiment of Ilberd's boundless rage and bottomless despair, all just so you two could have a glorious epic battle at Final Destination the Royal Menagerie. All while the crimson liberation of Ala Mhigo raged below.