Sebastian shamelessly and directly hit at this point.
His plan to cooperate with the old toad to escape was incomplete without this additional benefit. After thinking long and hard about it, he decided to ask the old toad instead of waiting to meet the Elder Dangle later.
All his original plans were already scattered, perhaps, he would never even meet the shark elder again so why not go with the next best option?
Also, it was because he learned a lot of things from his failure.
At that moment of desperation, under the pursuit of 4 purple tier predators, he bit the bullet and commenced his evolution. Unfortunately for him, he failed woefully but it was not without benefits. He got the experience.
Experience was something intangible, but it had inestimable value.