Once again it's a rolling window. So it's not as much about this result and what they both gained/lost but more about the result x seasons ago that's not counted anymore because it happened long ago. Apparently team A did something really nice back then that's now not counted anymore and team B did something shitty that's now not counted anymore.
Unrelated to team A beating team B they both removed the old result from their rolling window which influences their ranking.
If you really want to understand it have a look for example at the ranking of the Dutch team at the start of Season 35:
5/30/2016 7:30:00 PM 46 England 111 - 125 (Replay) 31 Nederland SC
6/6/2016 4:30:00 PM 63 Scotland 89 - 129 (Replay) 31 Nederland
6/13/2016 4:30:00 PM 22 Nederland 112 - 99 (Replay) 60 Danmark
We didn't go from the 31 to 22 because it's super impressive to beat Scotland (no offense). But we rose from 31 to 22 because exactly 2 seasons ago we lost a match to a way lower ranked team, which got removed from the rolling window between 6/6 and 6/13:
11/23/2015 6:00:00 PM 62 Crna Gora 101 - 96 (Replay) 28 Nederland
So it's not as much about the new match but more about the old match that is removed.
Crunchy! If you eat fast enough