To slip through the net means to go unnoticed or be neglected, and in this context it is hoped that the claim will go unnoticed.
Context: Hopefully, the claim would go unnoticed or be neglected, but if it didn't she was in even more trouble.
Hypothesis: Hopefully, the claim would slip through the net, but if it didn't she was in even more trouble.

Given this context, determine if the hypothesis is true (Yes, no, or unknown)?