I think an analysis simpler than Fangraphs' can shed light. On offense, the Twins currently rank 3rd in the league in runs per game. Yet, their OPS is 11th, close to league average. Unless they have been scoring on things like base running or extreme clutchness that OPS doesn't include, there is an inconsistency here that I don't understand. On the other side of the ball, they are 9th in runs-against per game, essentially league-average. But their OPS-against is 14th, next to last. Once again there is something to be reconciled. I trust OPS a little better than raw runs scored - I can make an argument that they've bunched their offensive production in an essentially lucky way that maximized their run scoring, easier than I can work backward and try to figure out how some home runs got counted unluckily as singles when the run-scoring occurred. The current wins are in the bank, as others have noted, but if the pace of wins falls off, it may not be due to a collective slump, but to the runs normalizing to the hits being gotten and given up. Of course the OPS numbers will not remain static either - but they will have to improve a lot just to reach the current level of run production/prevention and keep this current good streak going.