It's a lot of important information she needs to file away to share with others, and she tells Elder Marinero that she appreciates him taking the time to tell her all this. She says she'll talk to Lola — maybe enlist some other Reclaimers (though she words it as "outsiders like me") to help her — in the hopes of forming a plan to stop any Cursed that might escape. And she'll bring up the idea of reinforcing the wall too.