I am pretty sure you just get all of these packs in one single package by downloading the bundle, you won’t get each individual pack on your account (FAB doesn’t have such features yet)
You can contact the creator of the pack to confirm.
I’ve been burned on another one of their bundles before. That’s how they did it before, and probably how this works. It’s all the packs in one project file that you have to load up and migrate which folders you want. It’s incredibly inconvenient because, of course, when you start a project, you want to scroll through your library and add the asset pack that makes sense of that project, not go through a bundle you forgot you bought a year ago. This bundle is still a good deal, but the few things here that I might want(and don’t already have), I’d rather just wait until they’re on a Humble Bundle and then get the individual packs so it’s easier to manage.