I think I've said all season, we will go on good runs, and on bad runs, and neither will make an awful lot of sense when they arrive.
What worried me with the derby is we were really in the midst of a bad run. The size and manner of that win though, I honestly wouldn't be surprised if we go and win 3 or 4 in a row now. Hopefully this winning/good run can go on for 8-10 games. Then teams will work us out again, an we will have to find another solution. What you have to hope is
1) The good runs get longer
2) The poor runs get shorter
3) The poor runs are not as damaging (which the 2nd one this season wasn't).
It will be frustrating, but you compare it to more of an idealist like Klopp (or like we had with Silva/Martinez) and he has no idea what to do now plan A doesn't work. It's the same shape, same players, same approach every week and it keeps not working. It's the 6th home game without a win, and only 2 goals (1 a dubious pen, 1 from 6 games ago) in said run. It will be the same front 3, same full backs, same midfield with Thiago playing, same rough shape (4 at the back etc) when their next game is due as well.
It's why I've said for a while, they won't be resolving this problem any time soon. It's not a dig at Klopp, but he's not a pragmatist who will easily change path. The problem is, he's trying to play heavy metal football with a front 3 who will all be 29 this summer and look shot, a weak midfield and centre backs who can't turn in behind. There's little height or strength to the team. So sides sit deep, let them cross it into their small players and just play the %ages.