No one asked, but just for the record, the reasoning here is:
In actuality, Ion's decision to go to the Cheagle Woods was a spur-of-the-moment one when Anise wasn't even there, so she couldn't have reported it originally. (Here she sticks with him.)
Anise now knows that the God-Generals primarily want Ion to unlock the Sephiroth and don't care all that much about Mohs's goals, so they're highly unlikely to hurt Ion as long as any of the Daathic seals remain, and in all likelihood he'd need to lift those seals eventually anyway.
It is much, much easier to kidnap Ion from an isolated forest than from inside a heavily-defended warship. Therefore, providing the information to let them do this will prevent the attack on the Tartarus.
Mohs and Van generally want to limit Arietta's access to Ion so she doesn't realize he's not the same person she knew, but if Anise is lucky, "ligers" may be tempting enough keyword to get them to send her anyway. Most likely, they'd send Arietta with Largo as babysitter, since they don't need nearly as much firepower if they're not attacking a warship.
If Arietta is present in the Cheagle Woods, this means there is someone who can translate from Human to Monster who the ligers are much more positively disposed toward than Mieu.
The God-Generals could easily kick Anise, Luke, and Tear's asses and leave with Ion. However, Arietta does not want the ligers to be hurt. Therefore, Anise has a potential opening to do some fast-talking about the fact that if newborn liger cubs eat an entire village, the heavily-armed Malkuth warship full of soldiers would definitely show up and kill all of them, and therefore it would be in Arietta's best interest to convince them not to do that.
There is no other suitable liger habitat nearby. However, you know what Anise has access to that the ligers don't have? A large vehicle that can travel over land.
This opens the possibility of, essentially, a hostage exchange. Anise will convince Jade to ferry the ligers somewhere they won't eat everyone, and Arietta will take Ion to Shurrey Hill. Jade won't kill the ligers because they need Ion back, and Arietta won't take Ion and run because she needs the Tartarus's cooperation to get her family somewhere safe.
Worst case scenario result: Anise has to hand over Ion (she can probably act like she thinks she's just following orders from a trusted superior in the Oracle Knights to avoid getting murdered) and the death toll goes down by 300 Tartarus crew members. Now she has to deal with the ligers and figure out how to get Ion back.
Best case scenario result: the death toll goes down by 300, Arietta no longer hates everyone's guts, Anise gets Ion back, and in all likelihood Largo uses the fon slot seal on Ion as he originally planned, leaving Jade at level 45 and capable of steamrolling every combat situation they come across for months afterward.