To be honest, Son Gohan was pretty speechless too.
Cell had originally held an absolute advantage, yet for some inexplicable reason, he had pulled off a series of ridiculous moves.
First, wanting to conserve energy to deal with Son Gohan and Eliza, he had used Death Beams in an attempt to take Son Goku out of the fight, only for the latter to evade or block them endlessly.
Even more absurdly, something that could have been resolved quickly with his full strength had instead been dragged out by his insistence on conserving power, allowing Son Goku to push himself to the limit and break through to Super Saiyan 2.
At that point, he should have immediately chosen close combat. After all, Son Goku's body was severely injured. As long as he seized the opportunity, Cell, who was also at the Super Saiyan 2 level, could have spent some effort to kill Son Goku.
But Cell's choice was baffling again. Despite possessing Piccolo's cells and intelligence, he had insisted on making the strangest possible move: using a Kamehameha in preparation to finish Son Goku in one go.
To be fair, there was nothing inherently wrong with that choice based on the actual circumstances. But his opponent was Son Goku, the very representative of the Son family.
Everyone knew that in Dragon Balls, it was better to seal a member of the Son family than clash beams with one—especially when they were severely injured, at a disadvantage, or backed into a desperate corner.
Cell had fulfilled so many of those conditions all at once. The only taboo he had not touched was sacrificing the Son family's friends and relatives; everything else was in place.
So Son Gohan was not surprised by Cell's eventual defeat.
Son Goku's aura grew stronger and stronger,