Yes, I agree with Susie that this is an unusual case scenario.
I'm certainly not doubting the story, however I have to state that it's your use of terms that is causing the confusion in the mind of readers. Agreed the guy was verbally told he was approved but got put on AP before the visa could be printed, which is not unusual. We've had reports of other people who were told congratulations you've been approved, come pick up your passport on so so date only for them to show up and be told they're on AP. So it's not like your friend was approved and on AP at the same time - which is the impression I got from reading the narration a couple of posts back.
The visa was eventually issued with a 3 week expiration date based on the validity of the medical exam (as confirmed with a replacement 6 month validity visa issued flowing a new medical exam) - the initial visa wasn't issued with a 3 week validity because the "the clock started ticking" from the initial approval date.