Evidence used by people who went through low/no-fraud consulates is irrelevant in your case.
Pakistan has lots of issues, so you will need to front load any petition for that, whether it is for a K-1 or CR-1. We definitely see way more denials for Pakistan K-1s than CR-1s, so I agree that it is an odd choice. Processing times are meaningless if you first get a denial and have to start over with a new petition.