Actually it doesn't. I did that calculation for Mamoon, some years back.
Had that match (ENG) been against AUS or WI (teams that missed out), then it was a case because, in that case 1 point counts into 2. But, it's England, who qualified with higher points (13). For the sake of saying, if that ENG match had not been washed out, still PAK, WI & AUS eventually ends at 8 points each & NRR comes to equation - because head to head was again equal (Pak, AUS & WI winning one each against each other's) while instead of 13, Poms wound have finished on 14 points. In any case, mathematically PAK wasn't out before that SAF match or even after losing it, they won't had been eliminated - mathematically could have made the cut with 8 points.
In fact, in a 9 team round robin league, a team isn't out, until losing 6 out of 8 matches for a top 4 cut. It's 36 matches, 72 points - theoretically, possible that one ends at 16, one at 14 & one at 12 - then 5 at 6 points each & the 9th at 0. So the team with better NRR out of 5 standing at 6 each will make the cut for 4th. And, this is NRR - means, you can make lots of ground in one match, therefore untill last match, every combination is possible as long as one has 4 wins out of 8.
Eventually, rain almost certainly cost PAK 2 points against SAF, but if for the sake of saying, we don't consider that, still PAK wasn't out of tournament even had rain not washed out the ENG-PAK match.
Sorry to intrude here, but you always put your arguments in a bullish way which exceeds the limit of arogency, and politeness, for that I was expecting better than this from you. It's a matter of simple home work, which YouTube won't give you readymade.