No, it's lying. If they say your data has been deleted without a qualifier that some of it remains undeleted (regardless of the reason), that's just a straight-

No, it's lying. If they say your data has been deleted without a qualifier that some of it remains undeleted (regardless of the reason), that's just a straight-up lie because their statement is factually untrue and they know it. They could tell the truth without going into the specific messy detail.