Breaking through tactics always involves looking for weak targets; no one would ram an iron wall unless absolutely necessary.
The "Freedom Legion" is no different.
No surprise, they chose the breakthrough point code-named "Kevin" as their target.
Perhaps the strength of the three leaders is almost the same, but the difference in intelligence is clear. With one obvious dumb mutt in front of you, why pick on the other two monsters that clearly won't give up? It's not as if they're masochists or suicidal volunteers needing to be beaten senseless to feel good. Concentrate the forces and beat the fool.
The concept is rational, execution is swift.
If not for the opponent having peculiar traits, this round of attack would likely succeed.
"Kevin" might act silly but is not weak.