Hearing the guide's explanation, Ayame and her group knew that they couldn't further put pressure on the guide.
No matter how you coerce a fish to live on land, it would only die anyway.
Forcing the guide to do what he could not do would only lead to a futile effort.
Of course, there was also the possibility that the guide was lying and he was tricking them. But even if that was possible, Ayame and the others didn't have any evidence that proved that.
Moreover, the guide was still somewhat useful in navigating the Nevergreen Forest. Even if the guide was tricking them, they didn't have any choice since they weren't familiar with Vacation Paradise Island.
If Winston was here, it would have been more reliable to just use the balloon curse on him and use the Balloon Authority to take away the knowledge and memories of the guide. As long as they obtain that, then they would no longer need to rely on the guide in exploring Vacation Paradise Island.
