"And the chance of the six of you capturing me is… zero." Akbar made the statement with a smug.
The more people that attacked him, the more they would be at a disadvantage because of his ability. That was why if they wanted to capture him, they needed to send someone strong to fight him in a plain where he could use nothing to defend himself.
When he fought against the mercenary from the Skyward Group, he was in a disadvantageous position the whole time. Only when he started using his teammates and enemies as a part of his offensive could he overwhelm his opponent and even defeat him.
Hence, if they couldn't figure out Akbar's weakness soon, they wouldn't be able to defeat him.