Device registration via JITP w/ pre-provisioning hook

When creating provisioning templates in AWS IoT Core you can attach a pre-provisioning hook. https://docs.aws.amazon.com/iot/latest/developerguide/pre-provisioning-hook.html

I'm looking at onboarding devices using the JITP flow referenced here. https://docs.aws.amazon.com/iot/latest/developerguide/jit-provisioning.html

There exist thing attributes that need to be populated at provisioning time. These attributes are not available to be encoded in the device certificate at manufacturing time. The attributes are used as part of the device policy and topic pattern in a multi-tenant solution to ensure no cross-contamination of data between customers. I would like to use a pre-provisioning hook to further augment the data available to the provisioning template. Is this possible?

I understand that JITR is an option that would allow further augmentation but I would like to avoid having to manage the infrastructure necessary to support that approach.