The intense light emitted by the Calamity Star, compressed from the Chaos Evil God, was due to its internal energy leaking after its shell was shattered by Zheng Yichen.
The force opposite to Oblivion also weakened rapidly after the Calamity Star broke apart.
Zheng Yichen felt a bit regretful about this, but... he did not regret his decision!
Had he continued the standoff from earlier, he might have had a chance to leave a vivid impression of that energy and attempt to recreate that force opposite to Oblivion, but that would only aid the enemy.
He wasn't some arrogant Saiyan prince who, after being provoked just a little, would give the enemy a chance, only to collapse onto the ground after his prideful display and leave a huge mess for others to clean.
He had no fallback plan.
